According to the octet rule, if an atom has fewer than 8 electrons in the outer most energy level, what is likely to happen?

A. It will react with other nearby atoms to give, receive or share electrons until it has a full outer shell.
B. It will release electrons and protons until it reaches a stable configuration.
C. It will gain or lose neutrons until it has an equivalent number of neutrons to protons.
D. Nothing will happen, unless it is radioactive.

A. It will react with other nearby atoms to give, receive, or share electrons until it has a full outer shell.

According to the octet rule, if an atom has fewer than 8 electrons in the outermost energy level, it is likely to react with other nearby atoms to give, receive, or share electrons until it has a full outer shell. Therefore, the correct answer is A.