Question

why do atoms exchange or share electrons during bonding? (1 point) to have eight inner level electrons to become neutral to attract an ion with the opposite charge to obtain a full outer electron shell

Explanation:

Atoms exchange or share electrons to achieve a stable electron - configuration, which is usually a full outer electron shell (the octet rule for most atoms). Having a full outer shell makes the atom more stable. It's not about having eight inner - level electrons, becoming neutral (as some atoms are already neutral), or just attracting an ion with opposite charge (though that can be a result in some cases).

Answer:

to obtain a full outer electron shell