Question

The maximum number of 2p electrons with electronic spin $=-\frac{1}{2}$ are

• A. 6
• B. 0
• C. 2
• D. 3

Answer 1

Answer: (D)

3

Answer 2

Electronic configuration of 2p level
Number of electrons with clock wise spin $m_{s}=+1/2\,\, is =3$
Number of electrons with anticlockwise spin $m_{s}=-1/2\, is =3$
$\therefore$ Maximum number of electrons with spin $m_{s} =-1/2\,\, is\, 3$