Assertion: carnotite's radium | /r/SimilarTo | barium
Facets:
value: in its chemical behavior
type: OTHER
Source sentences:
text: Ionium expels an alpha particle and becomes radium, which is a bivalent element resembling barium belonging to the second group.
text: The heaviest of the alkaline earth elements, radium is intensely radioactive and resembles barium in its chemical behavior.