Solveeit Logo
Login

Question

Question: The magnetic moment of a divalent ion in aqueous solution with atomic number 25 is...

The magnetic moment of a divalent ion in aqueous solution with atomic number 25 is

A

5.9B.M.5.9B.M.

B

2.9B.M.2.9B.M.

C

6.9B.M.6.9B.M.

D

9.9B.M.9.9B.M.

Answer

5.9B.M.5.9B.M.

Explanation

Solution

μ=n(n+2)\mu = \sqrt{n(n + 2)}

Electronic configuration of ion (25) =

1s22s22p63s23p63d54s21s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{5}4s^{2}

No. of unpaired electrons (n) = 5

μ=5(5+2)=35=5.9B.M.\mu = \sqrt{5(5 + 2)} = \sqrt{35} = 5.9B.M.