When two oxygen atoms bond together in O2, what type of covalent bond do they form?

A double bond, because they overlap orbitals to share one pair of electrons.
A double bond, because they overlap orbitals to share two pairs of electrons.
A single bond, because they overlap orbitals to share one pair of electrons.
A single bond, because they overlap orbitals to share two pairs of electrons.

1 answer

The correct answer is:

A double bond, because they overlap orbitals to share two pairs of electrons.

In an O2 molecule, each oxygen atom shares two pairs of electrons through overlapping orbitals, resulting in a double bond.