Question

Question 2.65 The unpaired electrons in Al and Si are present in 3p orbital. Which electrons will experience more effective nuclear charge from the nucleus?

Class XI Structure of Atom Page 69

Answer 1

concept : greater the nuclear charge experience greater effective nuclear charge .
I mean if two elements A and B are given and
A^(1+) and B^(2+) .
then, B experience greater effective nuclear charge than A

electronic configuration of ₁₃Al = 1s², 2s², 2p⁶, 3s², 3p¹ , hence, valance electrons = 3
electronic configuration of ₁₄Si = 1s², 2s², 2p⁶, 3s², 3p² , hence, valance electrons = 4

Silicon ( + 4) has larger nuclear charge than Aluminum ( +3) . it means 3p unpaired electrons of silicon experience greater effective nuclear charge than Aluminum.

Answer 2

Answer:

Explanation:

Silicon ( + 4) has larger nuclear charge than Aluminum ( +3) . it means 3p unpaired electrons of silicon experience greater effective nuclear charge than Aluminum