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"graphite and diamond are allotropes of carbon"nouna structurally different form of an elementtype of:
Definition that contains allotrope
- se a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
- selenium a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
- atomic number 34 a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
- alpha iron a magnetic allotrope of iron; stable below 906 degrees centigrade
- delta iron an allotrope of iron that is stable between 1403 degrees centigrade and the melting point (= 1532 degrees)
- beta iron an allotrope of iron that is the same as alpha iron except that it is nonmagnetic; stable between 768 and 906 degrees centigrade
- gamma iron a nonmagnetic allotrope of iron that is the basis of austenite; stable between 906 and 1403 degrees centigrade