During change of O ₂ to O ₂⁻ ion, the electron adds on which one of the following orbitals?

Step-by-step solution

Electronic configuration of ( O ₂ ) ( aligned & (1 s)^2 ^*(1 s)^2 (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 aligned ) Thus, the incoming electron will enter in ( ^* 2 p_x ) to form ( O ₂ ).