Question

What is the nuclear effective charge of of zinc for 3d orbital ?

Answer 1

Answer:

8.85

Answer: 'Effective nuclear charge' on 3d electron of Zinc is 8.85.

Answer 2

Answer:

Effective nuclear charge’ on 3d electron of Zinc is 8.85.

To find:

The value of “effective nuclear charge” on the 3d electron of the zinc.

Solution:

From the question, we know that

Effective nuclear charge Z^{*}=Z-\sigmaZ

∗

=Z−σ

Z=atomic number

Zinc atomic number (z) = 30

σ= Shielding constant

Electronic configuration= 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{2}=1s

2

2s

2

2p

6

3s

2

3p

6

3d

10

4s

2

For 3d electrons,

\sigma=(0.35 \times 9)+(1 \times 18)=21.15σ=(0.35×9)+(1×18)=21.15

Z^{*}=Z-\sigmaZ

∗

=Z−σ

=30 - 21.15

=8.85

Therefore, Effective nuclear charge on 3d electron of Zinc is 8.85.