Assertion: californium's structure | /r/HasProperty | double hexagonal
Facets:
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.