/ RDLs / ISO 15926 Part 4: Core reference data - Edition 4 / ACTINIUM

ACTINIUM

Class
Identifier
https://posccaesar.org/ontology/15926-4/4.0/ACTINIUM
Definition An <ACTINIUM> is an <Atom> and a <RADIOACTIVE CHEMICAL ELEMENT> with symbol Ac and atomic number 89. It belongs to the actinide series