"' Allotropy "'or "'allotropism "'( ) is the property of some chemical elements to exist in two or more different forms, in the same physical phase ( i . e . different solid, liquid or gas forms ); these different states are not, themselves, considered to be examples of allotropy.
परिभाषा
the phenomenon of an element existing in two or more physical forms पर्याय: allotropy,
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