Please answer Asap with explanation 6 The electronic configuration of some neutral atoms are given below:- (A) 1s2 - Chemistry - Classification of Elements and Periodicity in Properties

Question

Please answer Asap with explanation
6 The electronic configuration of some neutral atoms are given
below:-
(A) 1s2 2s1 (B) 1s22s2
2p3 (C) 1s2 2s2 2p5 (D)
1s2 2s2 2p6 3s1
In which of these electronic configuration would you expect to have
highest :—
(i) IE1 (ii) IE2

1) C, A 2) B, A 3) C, B 4) B, D

Vartika Jain · Accepted Answer

Dear Student,

(B) will have the highest IE1 as here the p orbital is half filled which requires higher energy
 (A) will have the highest IE2 because after the removal of one electron the electronic configuration is 1s2
 So, now only 2 electrons are left so effective nuclear charge on these electrons will be high
 Hence, IE will be high
Hence, the correct answer is (2) B, A