Question

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

Explanation:

Atoms exchange or share electrons to achieve a stable electron - configuration, which is typically a full outer electron shell (the octet rule for most atoms). This makes them more stable.

Answer:

to obtain a full outer electron shell