Term IRI Term label Parent term IRI Parent term label Alternative term Definition http://purl.obolibrary.org/obo/CHEBI_33250 atom http://purl.obolibrary.org/obo/CHEBI_24431 chemical entity chemical entity A chemical entity constituting the smallest component of an element having the chemical properties of the element. http://purl.obolibrary.org/obo/OCE_0000004 radioactive quality http://purl.obolibrary.org/obo/BFO_0000019 quality radioactivity A quality of material that conducts spontaneous nuclear decay. http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group http://purl.obolibrary.org/obo/CHEBI_33250 atom IUACP group element An element classied in the IUACP group in the periodic table http://purl.obolibrary.org/obo/OCE_0000009 d subshell http://purl.obolibrary.org/obo/OCE_0000008 subshell diffuse subshell A subshell that has a maxium of 10 electrons and is contained in the 3rd shell and higher. http://purl.obolibrary.org/obo/CHEBI_50904 allergen http://purl.obolibrary.org/obo/CHEBI_52209 aetiopathogenetic role A chemical compound, or part thereof, which causes the onset of an allergic reaction by interacting with any of the molecular pathways involved in an allergy. http://purl.obolibrary.org/obo/CHEBI_52206 biochemical role http://purl.obolibrary.org/obo/CHEBI_24432 biological role A biological role played by the molecular entity or part thereof within a biochemical context. http://purl.obolibrary.org/obo/CHEBI_52217 pharmaceutical http://purl.obolibrary.org/obo/CHEBI_33232 application Any substance introduced into a living organism with therapeutic or diagnostic purpose. http://purl.obolibrary.org/obo/CHEBI_75768 mammalian metabolite http://purl.obolibrary.org/obo/CHEBI_75767 animal metabolite Any animal metabolite produced during a metabolic reaction in mammals. http://purl.obolibrary.org/obo/CHEBI_23367 molecular entity http://purl.obolibrary.org/obo/CHEBI_24431 chemical entity Any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer etc., identifiable as a separately distinguishable entity. http://purl.obolibrary.org/obo/CHEBI_24431 chemical entity http://purl.obolibrary.org/obo/BFO_0000040 material entity A chemical entity is a physical entity of interest in chemistry including molecular entities, parts thereof, and chemical substances. http://purl.obolibrary.org/obo/CHEBI_24432 biological role http://purl.obolibrary.org/obo/CHEBI_50906 role A role played by the molecular entity or part thereof within a biological context. http://purl.obolibrary.org/obo/CHEBI_24835 inorganic molecular entity http://purl.obolibrary.org/obo/CHEBI_23367 molecular entity A molecular entity that contains no carbon. http://purl.obolibrary.org/obo/CHEBI_24859 iodine atom http://purl.obolibrary.org/obo/CHEBI_24473 halogen Chemical element with atomic number 53. http://purl.obolibrary.org/obo/CHEBI_27638 cobalt atom http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen A cobalt group element atom that has atomic number 27. http://purl.obolibrary.org/obo/CHEBI_28073 chromium atom http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen A chromium group element atom that has atomic number 24. http://purl.obolibrary.org/obo/CHEBI_28112 nickel atom http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen Chemical element (nickel group element atom) with atomic number 28. http://purl.obolibrary.org/obo/CHEBI_33232 application http://purl.obolibrary.org/obo/CHEBI_50906 role Intended use of the molecular entity or part thereof by humans. http://purl.obolibrary.org/obo/CHEBI_33253 nucleon http://purl.obolibrary.org/obo/CHEBI_36347 nuclear particle Heavy nuclear particle: proton or neutron. http://purl.obolibrary.org/obo/CHEBI_33300 pnictogen http://purl.obolibrary.org/obo/CHEBI_33560 p-block element atom Any p-block element atom that is in group 15 of the periodic table: nitrogen, phosphorus, arsenic, antimony and bismuth. http://purl.obolibrary.org/obo/CHEBI_33303 chalcogen http://purl.obolibrary.org/obo/CHEBI_33560 p-block element atom Any p-block element belonging to the group 16 family of the periodic table. http://purl.obolibrary.org/obo/CHEBI_33318 main group element atom http://purl.obolibrary.org/obo/CHEBI_33250 atom An atom belonging to one of the main groups (found in the s- and p- blocks) of the periodic table. http://purl.obolibrary.org/obo/CHEBI_33521 metal atom http://purl.obolibrary.org/obo/CHEBI_33250 atom An atom of an element that exhibits typical metallic properties, being typically shiny, with high electrical and thermal conductivity. http://purl.obolibrary.org/obo/CHEBI_33560 p-block element atom http://purl.obolibrary.org/obo/CHEBI_33318 main group element atom Any main group element atom belonging to the p-block of the periodic table. http://purl.obolibrary.org/obo/CHEBI_50906 role http://purl.obolibrary.org/obo/BFO_0000017 realizable entity A role is particular behaviour which a material entity may exhibit. http://purl.obolibrary.org/obo/CHEBI_52209 aetiopathogenetic role http://purl.obolibrary.org/obo/CHEBI_24432 biological role A role played by the molecular entity or part thereof which causes the development of a pathological process. http://purl.obolibrary.org/obo/BFO_0000004 independent continuant http://purl.obolibrary.org/obo/BFO_0000002 continuant b is an independent continuant = Def. b is a continuant which is such that there is no c and no t such that b s-depends_on c at t. (axiom label in BFO2 Reference: [017-002]) http://purl.obolibrary.org/obo/BFO_0000020 specifically dependent continuant http://purl.obolibrary.org/obo/BFO_0000002 continuant b is a specifically dependent continuant = Def. b is a continuant & there is some independent continuant c which is not a spatial region and which is such that b s-depends_on c at every time t during the course of b’s existence. (axiom label in BFO2 Reference: [050-003]) http://purl.obolibrary.org/obo/CHEBI_75772 Saccharomyces cerevisiae metabolite http://purl.obolibrary.org/obo/CHEBI_76946 fungal metabolite Any fungal metabolite produced during a metabolic reaction in Baker's yeast (Saccharomyces cerevisiae). http://purl.obolibrary.org/obo/CHEBI_60809 adjuvant http://purl.obolibrary.org/obo/CHEBI_52217 pharmaceutical Any pharmacological or immunological agent that modifies the effect of other agents such as drugs or vaccines while having few if any direct effects when given by itself. http://purl.obolibrary.org/obo/CHEBI_18248 iron atom http://purl.obolibrary.org/obo/CHEBI_33356 iron group element atom An iron group element atom that has atomic number 26. http://purl.obolibrary.org/obo/CHEBI_27027 micronutrient http://purl.obolibrary.org/obo/CHEBI_33284 nutrient Any nutrient required in small quantities by organisms throughout their life in order to orchestrate a range of physiological functions. http://purl.obolibrary.org/obo/CHEBI_33252 atomic nucleus http://purl.obolibrary.org/obo/CHEBI_36347 nuclear particle A nucleus is the positively charged central portion of an atom, excluding the orbital electrons. http://purl.obolibrary.org/obo/CHEBI_33284 nutrient http://purl.obolibrary.org/obo/CHEBI_78295 food component A nutrient is a food component that an organism uses to survive and grow. http://purl.obolibrary.org/obo/CHEBI_30430 indium atom http://purl.obolibrary.org/obo/CHEBI_33317 boron group element atom A metallic element first identified and named from the brilliant indigo (Latin indicum) blue line in its flame spectrum. http://purl.obolibrary.org/obo/CHEBI_30440 thallium http://purl.obolibrary.org/obo/CHEBI_33317 boron group element atom A metallic element first identified and named from the brilliant green line in its flame spectrum (from Greek thetaalphalambdalambdaomicronsigma, a green shoot). http://purl.obolibrary.org/obo/CHEBI_25212 metabolite http://purl.obolibrary.org/obo/CHEBI_52206 biochemical role Any intermediate or product resulting from metabolism. The term 'metabolite' subsumes the classes commonly known as primary and secondary metabolites. http://purl.obolibrary.org/obo/CHEBI_50903 carcinogenic agent http://purl.obolibrary.org/obo/CHEBI_52209 aetiopathogenetic role A role played by a chemical compound which is known to induce a process of carcinogenesis by corrupting normal cellular pathways, leading to the acquistion of tumoral capabilities. http://purl.obolibrary.org/obo/CHEBI_75767 animal metabolite http://purl.obolibrary.org/obo/CHEBI_75763 eukaryotic metabolite Any eukaryotic metabolite produced during a metabolic reaction in animals that include diverse creatures from sponges, insects to mammals. http://purl.obolibrary.org/obo/CHEBI_76946 fungal metabolite http://purl.obolibrary.org/obo/CHEBI_75763 eukaryotic metabolite Any eukaryotic metabolite produced during a metabolic reaction in fungi, the kingdom that includes microorganisms such as the yeasts and moulds. http://purl.obolibrary.org/obo/CHEBI_76971 Escherichia coli metabolite http://purl.obolibrary.org/obo/CHEBI_76969 bacterial metabolite Any bacterial metabolite produced during a metabolic reaction in Escherichia coli. http://purl.obolibrary.org/obo/CHEBI_75763 eukaryotic metabolite http://purl.obolibrary.org/obo/CHEBI_25212 metabolite Any metabolite produced during a metabolic reaction in eukaryotes, the taxon that include members of the fungi, plantae and animalia kingdoms. http://purl.obolibrary.org/obo/CHEBI_76969 bacterial metabolite http://purl.obolibrary.org/obo/CHEBI_75787 prokaryotic metabolite Any prokaryotic metabolite produced during a metabolic reaction in bacteria. http://purl.obolibrary.org/obo/CHEBI_53000 epitope http://purl.obolibrary.org/obo/CHEBI_24432 biological role The biological role played by a material entity when bound by a receptor of the adaptive immune system. Specific site on an antigen to which an antibody binds. http://purl.obolibrary.org/obo/CHEBI_78295 food component http://purl.obolibrary.org/obo/CHEBI_52211 physiological role Any substance that is distributed in foodstuffs. It includes materials derived from plants or animals, such as vitamins or minerals, as well as environmental contaminants. http://purl.obolibrary.org/obo/CHEBI_30501 beryllium atom http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen Alkaline earth metal atom with atomic number 4. http://purl.obolibrary.org/obo/CHEBI_33233 fundamental particle http://purl.obolibrary.org/obo/CHEBI_36342 subatomic particle A particle not known to have substructure. http://purl.obolibrary.org/obo/CHEBI_33313 polonium atom http://purl.obolibrary.org/obo/CHEBI_33521 metal atom A radioactive metallic element discovered in 1898 by Marie Sklodowska Curie and named after her home country, Poland (Latin Polonia). http://purl.obolibrary.org/obo/CHEBI_33359 rhodium atom http://purl.obolibrary.org/obo/CHEBI_33358 cobalt group element atom A cobalt group element atom of atomic number 45. http://purl.obolibrary.org/obo/CHEBI_33363 palladium http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen Chemical element (nickel group element atom) with atomic number 46. http://purl.obolibrary.org/obo/CHEBI_33368 roentgenium atom http://purl.obolibrary.org/obo/CHEBI_33366 copper group element atom A copper group element atom with atomic number 111. The the ninth member of the 6d series of transition metals, it is an extremely radioactive, synthetic element. Average mass is around 281. http://purl.obolibrary.org/obo/CHEBI_33517 copernicium atom http://purl.obolibrary.org/obo/CHEBI_33340 zinc group element atom A zinc group element atom with a symbol Cn and atomic number 112. All its isotopes are intensely radioactive. Prior to its discovery, it had the placeholder name ununbium (in accordance with IUPAC recommendations). Following its discovery (in Darmstadt, 1996) and subsequent confirmation, the name copernicium was adopted in 2010. http://purl.obolibrary.org/obo/CHEBI_33579 main group molecular entity http://purl.obolibrary.org/obo/CHEBI_23367 molecular entity A molecular entity containing one or more atoms from any of groups 1, 2, 13, 14, 15, 16, 17, and 18 of the periodic table. http://purl.obolibrary.org/obo/CHEBI_36339 baryon http://purl.obolibrary.org/obo/CHEBI_36344 hadron Baryon is a fermion that does experience the strong force (strong interaction). The term is derived from the Greek betaalpharhoupsilonsigma (heavy). http://purl.obolibrary.org/obo/CHEBI_36342 subatomic particle http://purl.obolibrary.org/obo/BFO_0000040 material entity A particle smaller than an atom. http://purl.obolibrary.org/obo/CHEBI_36347 nuclear particle http://purl.obolibrary.org/obo/CHEBI_36342 subatomic particle A nucleus or any of its constituents in any of their energy states. http://purl.obolibrary.org/obo/CHEBI_49631 gallium atom http://purl.obolibrary.org/obo/CHEBI_33317 boron group element atom A metallic element predicted as eka-aluminium by Mendeleev in 1870 and discovered by Paul-Emile Lecoq de Boisbaudran in 1875. Named in honour of France (Latin Gallia) and perhaps also from the Latin gallus cock, a translation of Lecoq. http://purl.obolibrary.org/obo/CHEBI_10545 electron http://purl.obolibrary.org/obo/CHEBI_36338 lepton Elementary particle not affected by the strong force having a spin 1/2, a negative elementary charge and a rest mass of 0.000548579903(13) u, or 0.51099906(15) MeV. http://purl.obolibrary.org/obo/CHEBI_36338 lepton http://purl.obolibrary.org/obo/CHEBI_36340 fermion Lepton is a fermion that does not experience the strong force (strong interaction). The term is derived from the Greek lambdaepsilonpitauomicronsigma (small, thin). http://purl.obolibrary.org/obo/CHEBI_77746 human metabolite http://purl.obolibrary.org/obo/CHEBI_75768 mammalian metabolite Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens). http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33521 metal atom An element whose atom has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell. http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen http://purl.obolibrary.org/obo/CHEBI_33521 metal atom Any metal which causes the onset of an allergic reaction. http://purl.obolibrary.org/obo/CHEBI_36340 fermion http://purl.obolibrary.org/obo/CHEBI_36342 subatomic particle Particle of half-integer spin quantum number following Fermi-Dirac statistics. Fermions are named after Enrico Fermi. http://purl.obolibrary.org/obo/CHEBI_36343 composite particle http://purl.obolibrary.org/obo/CHEBI_36342 subatomic particle A subatomic particle known to have substructure (i.e. consisting of smaller particles). http://purl.obolibrary.org/obo/CHEBI_36344 hadron http://purl.obolibrary.org/obo/CHEBI_36343 composite particle Hadron is a subatomic particle which experiences the strong force. http://purl.obolibrary.org/obo/CHEBI_75787 prokaryotic metabolite http://purl.obolibrary.org/obo/CHEBI_25212 metabolite Any metabolite produced during a metabolic reaction in prokaryotes, the taxon that include members of domains such as the bacteria and archaea. http://purl.obolibrary.org/obo/OCE_0000001 valence shell http://purl.obolibrary.org/obo/OCE_0000006 electron shell The valence shell is the outermost shell of an atom. http://purl.obolibrary.org/obo/OCE_0000002 valence electron http://purl.obolibrary.org/obo/CHEBI_10545 electron A valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. http://purl.obolibrary.org/obo/OCE_0000003 metal quality http://purl.obolibrary.org/obo/BFO_0000019 quality A quality of material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. http://purl.obolibrary.org/obo/OCE_0000005 nihonium atom http://purl.obolibrary.org/obo/CHEBI_33250 atom Nihonium is a synthetic chemical element with the symbol Nh and atomic number 113. It is extremely radioactive; its most stable known isotope, nihonium-286, has a half-life of about 10 seconds. In the periodic table, nihonium is a transactinide element in the p-block. It is a member of period 7 and group 13 (boron group). http://purl.obolibrary.org/obo/OCE_0000006 electron shell http://purl.obolibrary.org/obo/BFO_0000028 three-dimensional spatial region An orbit followed by electrons around an atom's nucleus. The closest shell to the nucleus is called the "1 shell" (also called the "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on farther and farther from the nucleus. The shells correspond to the principal quantum numbers (n = 1, 2, 3, 4 ...) or are labeled alphabetically with the letters used in X-ray notation (K, L, M, …). http://purl.obolibrary.org/obo/OCE_0000008 subshell http://purl.obolibrary.org/obo/BFO_0000028 three-dimensional spatial region part of an electron shell. For example, the first (K) shell has one subshell, called 1s; the second (L) shell has two subshells, called 2s and 2p; the third shell has 3s, 3p, and 3d; the fourth shell has 4s, 4p, 4d and 4f; the fifth shell has 5s, 5p, 5d, and 5f and can theoretically hold more in the 5g subshell that is not occupied in the ground-state electron configuration of any known element. http://purl.obolibrary.org/obo/OCE_0000010 s subshell http://purl.obolibrary.org/obo/OCE_0000008 subshell A subshell that has a maxium of 2 electrons and is contained in every shell http://purl.obolibrary.org/obo/OCE_0000011 g subshell http://purl.obolibrary.org/obo/OCE_0000008 subshell A subshell that has a maxium of 18 electrons and is contained in the 5th shell and higher. http://purl.obolibrary.org/obo/OCE_0000013 h subshell http://purl.obolibrary.org/obo/OCE_0000008 subshell A subshell that has a maxium of 22 electrons with 11 atomic orbitals. http://purl.obolibrary.org/obo/OCE_0000014 f subshell http://purl.obolibrary.org/obo/OCE_0000008 subshell A subshell that has a maxium of 14 electrons and is contained in the 4th shell and higher. http://purl.obolibrary.org/obo/OCE_0000015 p subshell http://purl.obolibrary.org/obo/OCE_0000008 subshell A subshell that has a maxium of 6 electrons and is contained in the 2nd shell and higher. http://purl.obolibrary.org/obo/OCE_0000016 IUACP group 1 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 1 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000017 IUACP group 2 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 2 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000018 IUACP group 3 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 3 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000019 IUACP group 4 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 4 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000020 IUACP group 5 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 5 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000021 IUACP group 6 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 6 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000022 IUACP group 7 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 7 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000023 IUACP group 8 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 8 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000024 IUACP group 9 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 9 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000025 IUACP group 10 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 10 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000026 IUACP group 11 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 11 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000027 nonmetal quality http://purl.obolibrary.org/obo/BFO_0000019 quality A quality of material that mostly lacks the characteristics of a metal. Physically, a nonmetal tends to have a relatively low melting point, boiling point, and density. A nonmetal is typically brittle when solid and usually has poor thermal conductivity and electrical conductivity. Chemically, nonmetals tend to have relatively high ionization energy, electron affinity, and electronegativity. They gain or share electrons when they react with other elements and chemical compounds. http://purl.obolibrary.org/obo/OCE_0000028 IUACP group 12 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 12 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000029 IUACP group 13 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 13 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000030 IUACP group 14 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 14 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000031 IUACP group 15 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 15 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000032 IUACP group 16 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 16 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000033 IUACP group 17 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 17 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000034 IUACP group 18 element atom http://purl.obolibrary.org/obo/OCE_0000007 element atom in IUACP group an element atom in group 18 of the periodic table according to the IUACP classification http://purl.obolibrary.org/obo/OCE_0000036 element atom in period http://purl.obolibrary.org/obo/CHEBI_33250 atom An atom that is classified as a chemical element in a period (or row) in the periodic table. http://purl.obolibrary.org/obo/OCE_0000037 period 1 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 1 of the periodic table http://purl.obolibrary.org/obo/OCE_0000038 period 2 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 2 of the periodic table http://purl.obolibrary.org/obo/OCE_0000039 period 3 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 3 of the periodic table http://purl.obolibrary.org/obo/OCE_0000040 period 4 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 4 of the periodic table http://purl.obolibrary.org/obo/OCE_0000041 period 5 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 5 of the periodic table http://purl.obolibrary.org/obo/OCE_0000042 flerovium atom http://purl.obolibrary.org/obo/CHEBI_33250 atom Flerovium is a superheavy artificial chemical element with the symbol Fl and atomic number 114. It is an extremely radioactive synthetic element. The element is named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna, Russia, where the element was discovered in 1998. http://purl.obolibrary.org/obo/OCE_0000043 moscovium atom http://purl.obolibrary.org/obo/CHEBI_33250 atom Moscovium is a synthetic chemical element with the symbol Mc and atomic number 115. It was first synthesized in 2003 by a joint team of Russian and American scientists at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. In December 2015, it was recognized as one of four new elements by the Joint Working Party of international scientific bodies IUPAC and IUPAP. On 28 November 2016, it was officially named after the Moscow Oblast, in which the JINR is situated. http://purl.obolibrary.org/obo/OCE_0000044 period 6 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 6 of the periodic table http://purl.obolibrary.org/obo/OCE_0000045 period 7 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 7 of the periodic table http://purl.obolibrary.org/obo/OCE_0000046 period 8 element atom http://purl.obolibrary.org/obo/OCE_0000036 element atom in period an element atom in period 8 of the periodic table http://purl.obolibrary.org/obo/OCE_0000048 livermorium atom http://purl.obolibrary.org/obo/CHEBI_33250 atom Livermorium is a synthetic chemical element with the symbol Lv and has an atomic number of 116. It is an extremely radioactive element that has only been created in the laboratory and has not been observed in nature. http://purl.obolibrary.org/obo/OCE_0000049 tennessine atom http://purl.obolibrary.org/obo/CHEBI_33250 atom Tennessine is a synthetic chemical element with the symbol Ts and atomic number 117. It is the second-heaviest known element and the penultimate element of the 7th period of the periodic table. http://purl.obolibrary.org/obo/OCE_0000050 oganesson atom http://purl.obolibrary.org/obo/CHEBI_33250 atom Oganesson is a synthetic chemical element with the symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow, Russia, by a joint team of Russian and American scientists. In December 2015, it was recognized as one of four new elements by the Joint Working Party of the international scientific bodies IUPAC and IUPAP. It was formally named on 28 November 2016 http://purl.obolibrary.org/obo/OCE_0000051 radioactive atom http://purl.obolibrary.org/obo/CHEBI_33250 atom An atom that has an unstable nucleus and the unstable atomic nucleus loses energy by radiation. http://purl.obolibrary.org/obo/OCE_0000052 alkaline earth metal quality http://purl.obolibrary.org/obo/OCE_0000003 metal quality A metal quality of material that is shiny, silvery-white, somewhat reactive at standard temperature and pressure. The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). http://purl.obolibrary.org/obo/OCE_0000053 metalloid quality http://purl.obolibrary.org/obo/BFO_0000019 quality A quality of material that has properties in between, or that is a mixture of, those of metals and nonmetals. There is neither a standard definition of a metalloid nor complete agreement on the elements appropriately classified as such. Despite the lack of specificity, the term remains in use in the literature of chemistry. http://purl.obolibrary.org/obo/OCE_0000054 rare earth metal quality http://purl.obolibrary.org/obo/OCE_0000003 metal quality A metal quality of material that is rare on earth. As defined by the International Union of Pure and Applied Chemistry, a rare earth metal element is one of a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides, as well as scandium and yttrium. Despite their name, rare-earth elements are – with the exception of the radioactive promethium – relatively plentiful in Earth's crust, with cerium being the 25th most abundant element at 68 parts per million, more abundant than copper. However, because of their geochemical properties, rare-earth elements are typically dispersed and not often found concentrated in rare-earth minerals; as a result economically exploitable ore deposits are less common. http://purl.obolibrary.org/obo/OCE_0000055 noble gas quality http://purl.obolibrary.org/obo/OCE_0000027 nonmetal quality A nonmetal quality of material that isodorless, colorless, monatomic gases with very low chemical reactivity under standard conditions. The noble gases are historically also called the inert gases and sometimes referred to as aerogens. http://purl.obolibrary.org/obo/OCE_0000056 alkali metal quality http://purl.obolibrary.org/obo/OCE_0000003 metal quality A metal quality of material that is shiny, soft, highly reactive at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1. http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_33250 atom An atom of an element that exhibits properties that are between those of metals and nonmetals, or that has a mixture of them. The term generally includes boron, silicon, germanium, arsenic, antimony, and tellurium, while carbon, aluminium, selenium, polonium, and astatine are less commonly included. http://purl.obolibrary.org/obo/CHEBI_138675 gas molecular entity http://purl.obolibrary.org/obo/CHEBI_33579 main group molecular entity Any main group molecular entity that is gaseous at standard temperature and pressure (STP; 0degreeC and 100 kPa). http://purl.obolibrary.org/obo/CHEBI_22984 calcium atom http://purl.obolibrary.org/obo/CHEBI_22313 alkaline earth metal atom http://purl.obolibrary.org/obo/CHEBI_25107 magnesium atom http://purl.obolibrary.org/obo/CHEBI_22313 alkaline earth metal atom http://purl.obolibrary.org/obo/CHEBI_32594 barium atom http://purl.obolibrary.org/obo/CHEBI_22313 alkaline earth metal atom http://purl.obolibrary.org/obo/CHEBI_33324 strontium atom http://purl.obolibrary.org/obo/CHEBI_22313 alkaline earth metal atom http://purl.obolibrary.org/obo/CHEBI_33325 radium atom http://purl.obolibrary.org/obo/CHEBI_22313 alkaline earth metal atom http://purl.obolibrary.org/obo/CHEBI_26216 potassium atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_26708 sodium atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_30145 lithium atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_30514 caesium atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_33322 rubidium atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_33323 francium atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_52211 physiological role http://purl.obolibrary.org/obo/CHEBI_24432 biological role http://purl.obolibrary.org/obo/CHEBI_22927 bromine atom http://purl.obolibrary.org/obo/CHEBI_24473 halogen http://purl.obolibrary.org/obo/CHEBI_23116 chlorine atom http://purl.obolibrary.org/obo/CHEBI_24473 halogen http://purl.obolibrary.org/obo/CHEBI_24061 fluorine atom http://purl.obolibrary.org/obo/CHEBI_24473 halogen http://purl.obolibrary.org/obo/CHEBI_30415 astatine atom http://purl.obolibrary.org/obo/CHEBI_24473 halogen http://purl.obolibrary.org/obo/CHEBI_49637 hydrogen atom http://purl.obolibrary.org/obo/CHEBI_33559 s-block element atom http://purl.obolibrary.org/obo/CHEBI_24473 halogen http://purl.obolibrary.org/obo/CHEBI_33560 p-block element atom http://purl.obolibrary.org/obo/CHEBI_25555 nitrogen atom http://purl.obolibrary.org/obo/CHEBI_33300 pnictogen http://purl.obolibrary.org/obo/CHEBI_25805 oxygen atom http://purl.obolibrary.org/obo/CHEBI_33303 chalcogen http://purl.obolibrary.org/obo/CHEBI_27560 boron atom http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_27568 selenium atom http://purl.obolibrary.org/obo/CHEBI_33303 chalcogen http://purl.obolibrary.org/obo/CHEBI_27573 silicon atom http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_27594 carbon atom http://purl.obolibrary.org/obo/CHEBI_33306 carbon group element atom http://purl.obolibrary.org/obo/CHEBI_28659 phosphorus atom http://purl.obolibrary.org/obo/CHEBI_33300 pnictogen http://purl.obolibrary.org/obo/CHEBI_30441 germanium atom http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_138675 gas molecular entity http://purl.obolibrary.org/obo/CHEBI_26833 sulfur atom http://purl.obolibrary.org/obo/CHEBI_33303 chalcogen http://purl.obolibrary.org/obo/CHEBI_25585 nonmetal atom http://purl.obolibrary.org/obo/CHEBI_33250 atom http://purl.obolibrary.org/obo/CHEBI_33559 s-block element atom http://purl.obolibrary.org/obo/CHEBI_33250 atom http://purl.obolibrary.org/obo/CHEBI_27563 arsenic atom http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_30513 antimony atom http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_33301 bismuth atom http://purl.obolibrary.org/obo/CHEBI_33521 metal atom http://purl.obolibrary.org/obo/CHEBI_30452 tellurium atom http://purl.obolibrary.org/obo/CHEBI_137980 metalloid atom http://purl.obolibrary.org/obo/CHEBI_25016 lead atom http://purl.obolibrary.org/obo/CHEBI_33521 metal atom http://purl.obolibrary.org/obo/CHEBI_27007 tin atom http://purl.obolibrary.org/obo/CHEBI_33521 metal atom http://purl.obolibrary.org/obo/CHEBI_22313 alkaline earth metal atom http://purl.obolibrary.org/obo/CHEBI_33559 s-block element atom http://purl.obolibrary.org/obo/CHEBI_22314 alkali metal atom http://purl.obolibrary.org/obo/CHEBI_33559 s-block element atom http://purl.obolibrary.org/obo/CHEBI_22977 cadmium atom http://purl.obolibrary.org/obo/CHEBI_33340 zinc group element atom http://purl.obolibrary.org/obo/CHEBI_25195 mercury atom http://purl.obolibrary.org/obo/CHEBI_33340 zinc group element atom http://purl.obolibrary.org/obo/CHEBI_27363 zinc atom http://purl.obolibrary.org/obo/CHEBI_33340 zinc group element atom http://purl.obolibrary.org/obo/CHEBI_28984 aluminium atom http://purl.obolibrary.org/obo/CHEBI_33317 boron group element atom http://purl.obolibrary.org/obo/CHEBI_33561 d-block element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_30217 helium atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_33306 carbon group element atom http://purl.obolibrary.org/obo/CHEBI_33560 p-block element atom http://purl.obolibrary.org/obo/CHEBI_49957 xenon atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_33310 neon atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_33314 radon atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_49475 argon atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_49696 krypton atom http://purl.obolibrary.org/obo/CHEBI_33309 noble gas atom http://purl.obolibrary.org/obo/CHEBI_33317 boron group element atom http://purl.obolibrary.org/obo/CHEBI_33560 p-block element atom http://purl.obolibrary.org/obo/BFO_0000002 continuant http://purl.obolibrary.org/obo/BFO_0000001 entity http://purl.obolibrary.org/obo/BFO_0000040 material entity http://purl.obolibrary.org/obo/BFO_0000004 independent continuant http://purl.obolibrary.org/obo/BFO_0000141 immaterial entity http://purl.obolibrary.org/obo/BFO_0000004 independent continuant http://purl.obolibrary.org/obo/BFO_0000028 three-dimensional spatial region http://purl.obolibrary.org/obo/BFO_0000006 spatial region http://purl.obolibrary.org/obo/BFO_0000017 realizable entity http://purl.obolibrary.org/obo/BFO_0000020 specifically dependent continuant http://purl.obolibrary.org/obo/BFO_0000019 quality http://purl.obolibrary.org/obo/BFO_0000020 specifically dependent continuant http://purl.obolibrary.org/obo/BFO_0000006 spatial region http://purl.obolibrary.org/obo/BFO_0000141 immaterial entity http://purl.obolibrary.org/obo/CHEBI_33937 macronutrient http://purl.obolibrary.org/obo/CHEBI_33284 nutrient http://purl.obolibrary.org/obo/CHEBI_18291 manganese atom http://purl.obolibrary.org/obo/CHEBI_33352 manganese group element atom http://purl.obolibrary.org/obo/CHEBI_33355 bohrium atom http://purl.obolibrary.org/obo/CHEBI_33352 manganese group element atom http://purl.obolibrary.org/obo/CHEBI_49882 rhenium atom http://purl.obolibrary.org/obo/CHEBI_33352 manganese group element atom http://purl.obolibrary.org/obo/CHEBI_33353 technetium atom http://purl.obolibrary.org/obo/CHEBI_33352 manganese group element atom http://purl.obolibrary.org/obo/CHEBI_30682 ruthenium atom http://purl.obolibrary.org/obo/CHEBI_33365 platinum group metal atom http://purl.obolibrary.org/obo/CHEBI_30687 osmium atom http://purl.obolibrary.org/obo/CHEBI_33365 platinum group metal atom http://purl.obolibrary.org/obo/CHEBI_33357 hassium atom http://purl.obolibrary.org/obo/CHEBI_33356 iron group element atom http://purl.obolibrary.org/obo/CHEBI_33364 platinum http://purl.obolibrary.org/obo/CHEBI_33362 nickel group element atom http://purl.obolibrary.org/obo/CHEBI_49666 iridium atom http://purl.obolibrary.org/obo/CHEBI_33358 cobalt group element atom http://purl.obolibrary.org/obo/CHEBI_32999 europium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33336 lanthanum atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33369 cerium http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33372 neodymium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33373 promethium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33374 samarium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33375 gadolinium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33376 terbium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33377 dysprosium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33379 erbium http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33380 thulium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33381 ytterbium http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33382 lutetium atom http://purl.obolibrary.org/obo/CHEBI_33561 d-block element atom http://purl.obolibrary.org/obo/CHEBI_49648 holmium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_49828 praseodymium atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33319 lanthanoid atom http://purl.obolibrary.org/obo/CHEBI_33321 rare earth metal atom http://purl.obolibrary.org/obo/CHEBI_33330 scandium atom http://purl.obolibrary.org/obo/CHEBI_33561 d-block element atom http://purl.obolibrary.org/obo/CHEBI_33331 yttrium atom http://purl.obolibrary.org/obo/CHEBI_33561 d-block element atom http://purl.obolibrary.org/obo/CHEBI_33337 actinium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33341 titanium atom http://purl.obolibrary.org/obo/CHEBI_33345 titanium group element atom http://purl.obolibrary.org/obo/CHEBI_33342 zirconium atom http://purl.obolibrary.org/obo/CHEBI_33345 titanium group element atom http://purl.obolibrary.org/obo/CHEBI_33343 hafnium atom http://purl.obolibrary.org/obo/CHEBI_33345 titanium group element atom http://purl.obolibrary.org/obo/CHEBI_33346 rutherfordium atom http://purl.obolibrary.org/obo/CHEBI_33345 titanium group element atom http://purl.obolibrary.org/obo/CHEBI_33340 zinc group element atom http://purl.obolibrary.org/obo/CHEBI_33561 d-block element atom http://purl.obolibrary.org/obo/CHEBI_33352 manganese group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33356 iron group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33345 titanium group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33397 lawrencium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33347 vanadium group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33350 chromium group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33358 cobalt group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33362 nickel group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33366 copper group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33385 thorium http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33386 protactinium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33387 neptunium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33388 plutonium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33389 americium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33390 curium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33391 berkelium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33392 californium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33393 einsteinium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33394 fermium http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33395 mendelevium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33396 nobelium http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_27214 uranium atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33320 actinoid atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_33365 platinum group metal atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33321 rare earth metal atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33335 scandium group element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33562 f-block element atom http://purl.obolibrary.org/obo/CHEBI_27081 transition element atom http://purl.obolibrary.org/obo/CHEBI_33344 niobium atom http://purl.obolibrary.org/obo/CHEBI_33347 vanadium group element atom http://purl.obolibrary.org/obo/CHEBI_33348 tantalum atom http://purl.obolibrary.org/obo/CHEBI_33347 vanadium group element atom http://purl.obolibrary.org/obo/CHEBI_33349 dubnium atom http://purl.obolibrary.org/obo/CHEBI_33347 vanadium group element atom http://purl.obolibrary.org/obo/CHEBI_27698 vanadium atom http://purl.obolibrary.org/obo/CHEBI_33347 vanadium group element atom http://purl.obolibrary.org/obo/CHEBI_28685 molybdenum atom http://purl.obolibrary.org/obo/CHEBI_33350 chromium group element atom http://purl.obolibrary.org/obo/CHEBI_33351 seaborgium atom http://purl.obolibrary.org/obo/CHEBI_33350 chromium group element atom http://purl.obolibrary.org/obo/CHEBI_27998 tungsten http://purl.obolibrary.org/obo/CHEBI_33350 chromium group element atom http://purl.obolibrary.org/obo/CHEBI_33361 meitnerium atom http://purl.obolibrary.org/obo/CHEBI_33358 cobalt group element atom http://purl.obolibrary.org/obo/CHEBI_33367 darmstadtium http://purl.obolibrary.org/obo/CHEBI_33362 nickel group element atom http://purl.obolibrary.org/obo/CHEBI_28694 copper atom http://purl.obolibrary.org/obo/CHEBI_88184 metal allergen http://purl.obolibrary.org/obo/CHEBI_29287 gold atom http://purl.obolibrary.org/obo/CHEBI_33366 copper group element atom http://purl.obolibrary.org/obo/CHEBI_30512 silver atom http://purl.obolibrary.org/obo/CHEBI_33366 copper group element atom http://purl.obolibrary.org/obo/BFO_0000001 entity http://purl.obolibrary.org/obo/RO_0000086 has quality has_quality a relation between an independent continuant (the bearer) and a quality, in which the quality specifically depends on the bearer for its existence http://purl.obolibrary.org/obo/OCE_0000012 has last electron in has last electron in subshell An object property that represents a relation between an atom and a subshell that has the last or final electron of the atom. http://purl.obolibrary.org/obo/OCE_0000058 has valence electron has valence electron number An object property that represents a relation between an atom and the number of valence electrons. A valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed. For a main group element, a valence electron can exist only in the outermost electron shell; in a transition metal, a valence electron can also be in an inner shell. http://purl.obolibrary.org/obo/OCE_0000035 has electron shell An object property that represents a relation between an atom and the number of electron shell. An electron shell is an orbit followed by electrons around an atom's nucleus. The closest shell to the nucleus is called the "1 shell" (also called the "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on farther and farther from the nucleus. The shells correspond to the principal quantum numbers (n = 1, 2, 3, 4 ...) or are labeled alphabetically with the letters used in X-ray notation (K, L, M, …). http://purl.obolibrary.org/obo/BFO_0000051 has part http://purl.obolibrary.org/obo/RO_0000087 has role