lanthanoid atom dysprosium atom 0 162.50000 163.92918 66Dy CAS:7429-91-6 CHEBI:33377 Dy Dy Gmelin:16278 InChI=1S/Dy KBQHZAAAGSGFKK-UHFFFAOYSA-N WebElements:Dy [Dy] chebi_ontology disprosio dysprosium disprosio Dysprosium dysprosium dysprosium disprosio 镝 f-block element atom