Question

Magnetic moment of `V(Z = 23),Cr(Z = 24),and Mn(Z= 25)` are ` x,y,z `repectively hence
A. `z lt y lt x`
B. `x = y = z`
C. `x lt z lt y`
D. `x lt y lt z`

Answer 1

Correct Answer - C
( c) Magnetic moments `sqrt(n(n + 2)) B.M` where `n` is the number of unpaired electron.
`V(Z = 23) (Ar) 3 d^3 4 s^2 n = 3, sqrt15 BM = x`
`Cr(Z = 24) (Ar) 3 d^5 4 s n = 6, sqrt48 BM = y`
`Mn (Z = 25) (Ar) 3 d^5 4 s^2 n = 5, sqrt35 BM = z`.