Question

What is the effective nuclear charge felt by a 2p electron of a nitrogen atom?
What will be the effective nuclear charge felt by its 1s electron?

Answer 1

Answer:

Effective nuclear charge for nitrogen is Zeff (3.83).

Answer 2

Answer:

3.90

Explanation:

We know the electronic configuration of N (Z = 7):

1s², (2s2p)⁴

(2) (4)

A/c to Slater's rule:

shielding constant for all the electrons in the N atom,

Shielding constant = 2×0.85 + 4×.35 = 3.10

Shielding constant = 2×0.85 + 4×.35 = 3.10 Zeff = Z - shielding constant

Shielding constant = 2×0.85 + 4×.35 = 3.10 Zeff = Z - shielding constant = 7 - 3.10 = 3.90

Effective nuclear charge felt by 2p elctron of a N atom = Zeff = 3.90.