Chapter 2 - Atoms, Molecules, and Ions - Questions & Problems - Page 68: 2.28

Allotropes are different physical forms of the same element. For example, 2 allotropes of carbon are graphite and diamond, which are both composed of carbon but have vastly different physical properties.

Allotropes are different physical forms of the same element. For example, 2 allotropes of carbon are graphite and diamond, which are both composed of carbon but have vastly different physical properties.