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What is the atomicity of halogens?

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in Chemistry – Class 12 by (188k points)
What is the atomicity of halogens?

(a) Monoatomic

(b) Diatomic

(c) Triatomic

(d) Octatomic

The question was posed to me in an internship interview.

This key question is from P-Block in portion P-Block Elements of Chemistry – Class 12

1 Answer

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Correct option is (b) Diatomic

The explanation: 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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