A1L1L1O1T1R1O1P3I1E1S1
13 points
ALLOTROPIES is validvalid
ALLOTROPY, property of some chemical elements to exist in two or more different forms
ALLOTROPY, the property whereby certain elements may exist in more than one crystal structure
ALLOTROPY, property of some chemical elements to exist in two or more different forms
ALLOTROPY, the property whereby certain elements may exist in more than one crystal structure