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anzhelika [568]
2 years ago
6

When an oxygen atom forms an ion, it gains two electrons

Physics
1 answer:
kirill [66]2 years ago
5 0
Note the atom of the Oxygen is electrically neutral, meaning it has equal numbers of electrons and protons.

So if it gains 2 electrons, it would have excess of 2 electrons, hence its charge would be -2.

Option B.
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