Question

The number of electrons that are paired in oxygen molecule is

• A. 16
• B. 12
• C. 14
• D. 8

Answer 1

Answer: (C)

$O_2\to KK\sigma 2s^2{\sigma }^{\ast }2s^2\sigma 2p_z^2\pi 2p_x^2=\pi 2p_y^2{\pi }^{\ast }2p_x^1$

$={\pi }^{\ast }2p_y$

Total paired electrons are $14$