When two carbon atoms are joined by a double bond, how many electron pairs are shared between the two carbons?

Question

Quizplus · Accepted Answer

When two carbon atoms are joined by a double bond, they share 2 electron pairs between them. This is because each carbon has 4 valence electrons and needs 8 electrons to complete its octet. By sharing two pairs of electrons, the carbon atoms can achieve stability and form a stable molecule.

When Two Carbon Atoms Are Joined by a Double Bond