Question

allotropic forms of tin

Answer 1

In contrast, α-tin (nonmetallic form, or gray tin), which is stable below 13.2 °C (55.8 °F), is brittle. α-tin has a diamond cubic crystal structure, similar to diamond, silicon or germanium. ... These two allotropes, α-tin and β-tin, are more commonly known as gray tinand white tin, respectively.

Answer 2

Gray tin and White tin...
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