Which of the following two molecular species are Diamagnetic in nature? [ A ]= O ₂⁻ [ B ] .= N ₂⁺ [ C ]= C ₂ [ D ]= O ₂ ²⁻

Step-by-step solution

O₂^- (17e): _ 1s ^2 _ 1s ^ *2 _ 2s ^2 _ 2s ^ *2 _ 2p_z ^2 _ 2p_x ^2 _ 2p_y ^2 _ 2p_x ^ *2 _ 2p_y ^ *1 one unpaired electron, paramagnetic N₂^+ (13e): _ 1s ^2 _ 1s ^ *2 _ 2s ^2 _ 2s ^ *2 _ 2p_x ^2 _ 2p_y ^2 _ 2p_z ^1 one unpaired electron, paramagnetic C₂ (12e): _ 1s ^2 _ 1s ^ *2 _ 2s ^2 _ 2s ^ *2 _ 2p_x ^2 _ 2p_y ^2 all electrons paired, diamagnetic O₂²⁻ (18e): _ 1s ^2 _ 1s ^ *2 _ 2s ^2 _ 2s ^ *2 _ 2p_z ^2 _ 2p_x ^2 _ 2p_y ^2 _ 2p_x ^ *2 _ 2p_y ^ *2 all electrons paired, diamagnetic C₂ and O₂²⁻ are diamagnetic. Ans