The electronic configuration of four elements are given below. Which elements does not belong to the same family as others?

Question

The electronic configuration of four elements are given below. Which elements does not belong to the same family as others? (A) [Xe] 4 f14 5 d10 6 s2 (B) [ Kr ] 4 d105 s2 (C) [ Ne ] 3 s2 3 p5 (D) [ Ar ] 3 d10 4 s2

Tardigrade Admin · Accepted Answer

Elements (a), (b) and (d) belong to the same group since each one of them has two electrons in the s sub shell. In contrast, element (c) has seven electrons in the valence shell and hence does not lie in the same group in which elements (a), (b) and (d) lie

Q. The electronic configuration of four elements are given below. Which elements does not belong to the same family as others?

$[X e] 4 f^{14} 5 d^{10} 6 s^{2}$

$[Kr] 4 d^{10} 5 s^{2}$

$[N e] 3 s^{2} 3 p^{5}$

$[A r] 3 d^{10} 4 s^{2}$

Elements (a), (b) and (d) belong to the same group since each one of them has two electrons in the s sub shell. In contrast, element (c) has seven electrons in the valence shell and hence does not lie in the same group in which elements (a), (b) and (d) lie

Q. The electronic configuration of four elements are given below. Which elements does not belong to the same family as others?

[Xe]4f145d106s2

[Kr]4d105s2

[Ne]3s23p5

[Ar]3d104s2

Elements (a), (b) and (d) belong to the same group since each one of them has two electrons in the s sub shell. In contrast, element (c) has seven electrons in the valence shell and hence does not lie in the same group in which elements (a), (b) and (d) lie

$[X e] 4 f^{14} 5 d^{10} 6 s^{2}$

$[Kr] 4 d^{10} 5 s^{2}$

$[N e] 3 s^{2} 3 p^{5}$

$[A r] 3 d^{10} 4 s^{2}$