The maximum no. of electrons that can have principal quantum no,n=3, and spin quantum no.=-1/2 is

Asked by Anil | 20th Jun, 2017, 11:23: AM

Expert Answer:

For n=3,
l = 0, 1, 2
ms should be -1/2
l=0 is s subshell where only 1 electron has ms = -1/2
l=1, p subshell, so 3 electrons with ms = -1/2
l=2, d subshell, so 5 electrons with ms = -1/2.
Hence total 9 electrons would have n=3 and ms = -1/2.

Answered by Prachi Sawant | 20th Jun, 2017, 02:40: PM