Question

When an oxygen atom forms an ion, it gains two electrons. Identify the electrical charge of the oxygen ion.

A. -1
B. +1
C. -2
D. +2

Answer 1

-2 is the answer I believe

Answer 2

"-2" is the electric charge of the oxygen ion among the following choices given in the question. It actually needs two electrons to complete the stable outer shell. The correct option among all the options that are given in the question is the third option or option "C". I hope that the answer has helped you.