Assuming the Hund's rule violated, the bond order and magnetic nature of the diatomic molecule of B 2 is:

Step-by-step solution

According to the Hund's rule of maximum multiplicity, if two or more orbitals of equal energy are available, the electrons will occupy them singly before filling them in pairs. B 2 = ( σ 1 s 2 ) ( σ 1 s 2 * ) ( σ 2 s 2 ) ( σ 2 s 2 * ) ( π 2 px 2 ) Number of bonding electrons = 6   Number of anti-bonding electrons = 4 Bond   order = Number   of   bonding   electrons − Number   of   anti ‐ bonding   electrons ​ 2 = 6 − 4 &#82