A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, and atomic number 89. Its principal isotope is 227 and it decays primarily by beta-emission.
ID
http://purl.bioontology.org/ontology/MESH/D000186
AQL
AD AE AN BL CF CH CL EC HI IP ME PD PK PO SD ST TO TU UR
cui
C0001246
DC
1
definition
A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, and atomic number 89. Its principal isotope is 227 and it decays primarily by beta-emission.