Question

effective nuclear charge on 3d electron of Zinc

Answer 1

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 $Z^{*}=Z-\sigma$

Z=atomic number

Zinc atomic number (z) = 30

σ= Shielding constant

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

For 3d electrons,

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

$Z^{*}=Z-\sigma$

=30 - 21.15  

=8.85

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

Answer 2

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

Explanation:

• Effective nuclear charge is the actual amount of positive charge which is experienced by the electron in a polyelectronic atom.

• The value of “effective nuclear charge” on the 3d electron of the zinc is as follows:-

Effective nuclear charge=Z- σ

Z=atomic number

Zinc atomic number (Z) = 30

• σ= Shielding constant
• Electronic configuration= 1s²,2s²,2p⁶,3s²,3p⁶,3d¹⁰,4s²

• For 3d electrons,

σ= Shielding constant=21.15

Z=30 for Copper

so Effective nuclear charge=Z- σ

=30 - 21.15  

=8.85

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