Question

Why is helium monatomic but hydrogen diatomic?

Answer 1

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Nitrogen stands out because its atoms share a strong triple bond, making it a very stable substance. The noble gases, such as helium and neon, rarely form molecules at all; they are monatomic. ... These elements do not form molecules with themselves or other metallic elements.

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Answer 2

helium is a monatomic molecule because it has only one atom present in it while hydrogen is a diatomic molecule because it has two atoms present in it.

Explanation:

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