Q.

The valence electron configuration of an element with atomic number 23 is

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a

3d5

b

3d3 4s2

c

3d2 4s1 4p1

d

3d2 4s2 4p1

answer is B.

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Detailed Solution

V(Z = 23)....1s22s22p63s23p64s23d3     V(Z = 23)....[Ar ]  4s23d3  .
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