Question

Magnetic moment of $C{e}^{3+}$ 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)

The electronic configuration of $C{e}^{3+}$ is $4f^1$.
Hence, $\mu =\sqrt{n\left(n+2\right)}=\sqrt{1\left(1+2\right)}$
$=1.732B.M.$