Question

Calculate the zeff of Mn atom

Answer 1

Answer:

The effective nuclear charge is the net positive charge experienced by valence electrons. It can be approximated by the equation: Zeff = Z – S, where Z is the atomic number and S is the number of shielding electrons.

Explanation:

For nitrogen,

Electronic configuration 1s

2

2s

2

2p

3

Screening constant σ=(0.35×4)+(0.85×2)=3.10

Effective nuclear charge Z

∗

=Z−σ=7−3.10=3.90

For N

−

 

Electronic configuration 1s

2

2s

2

2p

4

σ=(0.35×5)+(0.85×2)=3.45

Z

∗

=z−σ=7−3.45=3.55