Question

Calculate screening constant and effective nuclear charge for 3d electron in Nickel (Z = 28).​

Answer 1

The expression for the effective nuclear charge Z∗ is

Z∗=Z−S

Here, Z is the nuclear charge and S is the shielding constant.

For nickel Z=28 and S=20.45

Hence, Z∗=Z−S=28−20.45=7.55

Hence, the effective nuclear charge for Nickel atom is 7.55.

Answer 2

Answer:

Nickel atom for 3d electron is 7.55