Which one is a wrong statement?

1. The electronic configuration of $\mathrm{N}$ atom is, 
   
2. An orbital is designated by three quantum numbers, while an electron in an atom is designated by four quantum numbers.
3. Total orbital angular momentum of electron in 's' orbital is equal to zero.
4. The value of m for ${\mathrm{dz}}^2$ is zero.

Solution

According to Hund's Rule of maximum multiplicity, the correct electronic configuration of N-atom is

OR

so option a violates Hund's rule

Asked in: NEET 2018

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