When two oxygen atoms bond together in O2, what type of covalent bond do they form? (4 points)
Group of answer choices

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.