Question

what does the octet rule state that explains why atoms bond?
an atom bonds to have eight valence electrons to become stable.
an atom bonds to lose eight valence electrons to become stable.
an atom bonds to have eight valence electrons to become unstable.
an atom bonds to lose eight valence electrons to become unstable.

Explanation:

The octet rule states that atoms bond to have eight valence electrons to become stable. Atoms aim for a full outer electron shell (usually 8 electrons) as it is a stable configuration. Losing or having eight valence electrons (in an unstable way) doesn't align with the octet rule's purpose. The rule is about achieving stability through having (via bonding) eight valence electrons.

Answer:

An atom bonds to have eight valence electrons to become stable.