Paramagnetism arises from the presence of unpaired electrons, each such electron having a magnetic moment associated with its spin angular momentum and orbital angular momentum.

A

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

B

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

C

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

D

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