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Question

What is the atomicity of halogens?

A
Monoatomic
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B
Diatomic
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C
Triatomic
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D
Octatomic
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Solution

The correct option is B Diatomic
Each halogen has one electron less than the nearest inert gas. As a result, halogens are very reactive elements. They readily share their single unpaired electron with other atoms to form covalent bonds. Thus, all halogens exist as diatomic molecules.

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