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Question

A group 16 element exists in the monoatomic state in the metallic lattices. It also exists in two crystalline forms. The metal is:

A
Po
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B
S
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C
Se
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D
Te
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Solution

The correct option is A Po
polonium has two metallic allotropes, the α atom has the simple cubic structure in a single atom basis at STP and β atom of it has rhombohedral structure. Po belongs to group 16.

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