Which one is a wrong statement ?

Options

A. Total orbital angular momentum of electron in `s` orbital is equal to zero.
B. An orbital is designated by three quantum numbers while an electron in an atom is designated by four quantum numbers.
C. The electronic configuration of `N` atom is

D. The value of `m` for `d_(z^2)` is zero.

Answer

C

Explanation

( c) (a) Orbital angular momentum `= sqrt(l(l + 1)). (h)/(2 pi)`
For 's' orbital `l = 0`
`:.` Orbital angular momentum is zero.
(b) Orbital designated by `rarr n, l and m`
Eelectron designated by `rarr n,l,m and s`.
( c) For `N`

and not as shown in question in that Hund's rule of maximum multiplicity is violated. (d) By convention
For `d_z 2 rarr m = 0`.