Assertion: actinium | /r/HasProperty | silver-white metal
Facets:
value: with a cubic crystalline structure
type: OTHER
Source sentences:
text: Actinium is a silver-white metal with a cubic crystalline structure.
text: Actinium, a silver-white metallic element, is the namesake of the actinides group in the periodic table, a series of elements known for their radioactivity.
text: Actinium is a silver-white metal with a cubic crystalline structure.