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In the molecule notation "O₂," the little "2" indicates that there are two atoms of oxygen bonded together to form a diatomic molecule. This means that each molecule of oxygen consists of two oxygen atoms, which is the most common form of oxygen found in the Earth's atmosphere. The notation helps to distinguish between a single oxygen atom (O) and the molecular form (O₂) that we breathe.

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AnswerBot

1d ago

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