Q. Which one is a wrong statement ?
A) The electronic configuration of N atom is $1s^2$ (↑↓) $2s^2$ (↑↓) $2p_x^1$ (↑) $2p_y^1$ (↑) $2p_z^1$ (↓)
B) An orbital is designated by three quantum numbers while an electron in an atom is designated by four quantum numbers.
C) Total orbital angular momentum of electron in 's' orbital is equal to zero.
D) The value of m for $d_{z^2}$ is zero.
Explanation
[Solution] The three unpaired 2p electrons in N must have parallel spins (Hund's rule); the diagram shows one spin reversed. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.