Question

Magnetic moment of V(Z = 23), Cr( Z = 24), and Mn(Z = 25) are x, y, z, respectively, hence:

• A. x = y = z
• B. x < y < z
• C. x < z < y
• D. z < y < x

Answer 1

The correct option is C x < z < y

As we know,

magnetic moment

$\mu =\sqrt{n(n+2)}$

where n = no of unpaired electron

so higher the no of unpaired electron, higher is the magnetic moment.

V : 3 paired electrons x

Cr: 6 unpaired electrons y

Mn: 5 unpaired electrons z

We know that number of unpaired electron increases the magnetic moment also increases.

So, $y>z>x$

Hence the correct option is C.