The Total spin and magnetic number far the atom with atomic number `7` are

Options

A. `+- 3,sqrt(3) BM`
B. `+- 1,sqrt(8) BM`
C. `+- (2)/(3)sqrt(15) BM`
D. `+- 0,sqrt(8) BM`

Answer

C

Explanation

Atomic number `= 7`
Structure is `1s^(2) ,2s^(2),2p^(3)`
`n = 3`
Total spin `= +- (1)/(2) n = +- (1)/(2) xx 3 = +- (3)/(2)`
Magnetic moment `= sqrt(n(n + 2))`
`= sqrt(3(3 + 2)) = sqrt(15) BM`