Question

The magnetic moment of a chloride of titanium is $2\sqrt{2}$ B.M. Find the number of electrons having azimuthal quantum number = 0 or 2 in one molecule of the corresponding titanium chloride.

• A. 20
• B. 22
• C. 26
• D. 25

Answer 1

The correct option is A 20

Magnetic moment $=2\sqrt{2}\Rightarrow$ number of unpaired electrons = 2, so oxidation state of $Ti=+2$.
So, chloride is $TiC{l}_2$
$l=0\Rightarrow 1s,2s$ and $3s$ for titanium $\Rightarrow 3\times 2=6$ electrons and 1s, 2s and 3s for chlorine $\Rightarrow 3\times 2\times 2=12$ (for two Cl atoms)and
$l=2\Rightarrow 3d$ for titanium $\Rightarrow 2\times 1=2$. So total electrons $=6+12+2=20$