Answer: Tin exists in two allotropic forms: Gray tin has
Chapter , Problem 105AE(choose chapter or problem)
Problem 105AE
Tin exists in two allotropic forms: Gray tin has the diamond structure, and white tin has a close-packed structure. One of these allotropic forms is a semiconductor with a small band gap. while the other is a metal (a) Which one is which? (b) Which form would you expect to have the longer Sn—Sn bond distance?
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