Assertion: actinium's decay product | /r/HasProperty | part of the actinium series
Facets:
Source sentences:
text: It decays according to its 21.772-year half-life emitting mostly beta (98.62%) and some alpha particles (1.38%); the successive decay products are part of the actinium series.
text: It decays according to its 21.772-year half-life emitting mostly beta (98.62%) and some alpha particles (1.38%); the successive decay products are part of the actinium series.