Chemistry, asked by senthilsan547, 4 months ago

calculate effective nuclear charge on 4s electron in potassium(At. No:k=19)​

Answers

Answered by nikhilasri0485
2

Explanation:

The effective nuclear charge of 4s electron in potassium is, 2.20

Explanation :

As we are given that, the element is potassium that has atomic number 19.

The electronic Configuration of (K), Potassium is,

1s^2 2s^2 2p^6 3s^2 3p^6 4s^1

Formula used to calculate the effective nuclear charge is:

(Zeff)4s = Z−σ

and,

σ = 0.85 × (number of electrons in (n - 1)th shell) + 1.00 × (total number of electrons in the inner shell)

= 0.85×8+1.00×10

= 16.80

So,

Z_{eff} = 19−16.80=2.20

Thus, the effective nuclear charge of 4s electron in potassium is, 2.20

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