Which bond is formed when two electrons pairs are shared between two atoms?

Which bond is formed when two electrons pairs are shared between two atoms?

• A. Single Bond
• B. Double Bond
• C. Triple Bond
• D. Coordinate Bond

Answer: (B)

Sharing two pairs of electrons between two atoms creates a double bond. In covalent bonding, the bond order equals the number of electron pairs being shared. A single bond uses one pair, a double bond uses two, and a triple bond uses three. The two shared pairs give a bond order of two, which is characteristic of a double bond. This arrangement also explains why double bonds are shorter and stronger than single bonds, due to the greater electron sharing and the presence of both a sigma and a pi component. A coordinate bond involves both electrons coming from one atom, which is a different situation from a standard two-pair shared bond.

Sharing two pairs of electrons between two atoms creates a double bond. In covalent bonding, the bond order equals the number of electron pairs being shared. A single bond uses one pair, a double bond uses two, and a triple bond uses three. The two shared pairs give a bond order of two, which is characteristic of a double bond. This arrangement also explains why double bonds are shorter and stronger than single bonds, due to the greater electron sharing and the presence of both a sigma and a pi component. A coordinate bond involves both electrons coming from one atom, which is a different situation from a standard two-pair shared bond.