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20 May, 01:44

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

What is the electrical charge of the oxygen ion?

A.

-1

B.

-2

C.

+1

D.

+2

+3
Answers (1)
  1. 20 May, 02:10
    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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