Question

Why is it that oxygen gas is a diatomic molecule​

Answer 1

Because oxygen has 6 electrons in its outermost shell, it need two additional electrons to become stable, therefore it unites with itself to create a double bond and become stable. As a result, it can be found in diatomic molecules

Answer 2

➢ Oxygen exists as a diatomic molecule in nature when it is not combined with any other element. It forms O2 molecule because it is stable when it is uncombined. ... By achieving octet configuration, the diatomic elements become more stable compared to the single atom. Therefore, oxygen and hydrogen are diatomic.

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