Question

The $C{u}^{2+}$ in $CaS{O}_4-5H_{2}O$ has a spin only magnetic moment of 1 -73 p.B. This indicates the pressure of

• A. One unpaired electron
• B. Two unpaired electron
• C. Three unpaired electron
• D. Four unpaired electron

Answer 1

Answer: (A)

$\mu =\sqrt{n(n+2)}{\mu }_b$ where $n$ = no. of unpaired electrons $\therefore$ 1.73 = $\sqrt{n(n+2)}{\mu }_b\therefore n=1$