Question

Magnetic moment of $Ce^{3 +}$ion on the basis of ‘spin-only’ formula will be ____ B.M.

• A. $1.232$
• B. $1.332$
• C. $1.532$
• D. $1.732$

Answer 1

Answer: (D)

$1.732$

Answer 2

The electronic configuration of $Ce^{3 +}$is $4f^{1}$

Hence $\mu\backslash\sqrt{n(n + 2)} = \sqrt{1(1 + 2)} = 1.732B.M.$