Assertion: actinide californium | /r/CapableOf | crystallize in double hexagonal structure
Facets:
value: at ambient conditions
type: TEMPORAL
Source sentences:
text: Contrary to the lighter actinides californium, berkelium, curium and americium which crystallize in a double hexagonal structure at ambient conditions, einsteinium is believed to have a face-centered cubic (fcc) symmetry with the space group Fm3m and the lattice constant a = 575 pm.