Which of the following has the highest bond order ?

Step-by-step solution

aligned N ₂ (7+7=14 e⁻ )= & K K^*, 2 s^2, 2 s^2, 2 p_x^2 & 2 p_y^2, 2 p_z^2 BO = & 1 2 (8-2)=3 O ₂ (8+8=16 e⁻ )= & K K^*, 2 s^2, _ ^* 2 s^2, 2 p_z^2, & 2 p_x^2 2 p_y^2, * 2 p_x^1 2 p_y^1 BO = & 1 2 (8-4)=2 He ₂ (2+2=4 e⁻ )= & 1 s^2, ^* 1 s^2 BO = & 1 2 (2-2)=0 aligned aligned H ₂ (1+1=2 e⁻ ) & = 1 s^2 BO & = 1 2 (2-0)=1 aligned Hence, N ₂ has the highest bond order.