Question #39125

↳Redirected from "What are quantum numbers?"
1 Answer
Javaria Saleem
Jun 9, 2017

Because M shell has the capacity for #8# electrons. Secondly, #18#
is used for all the sub shells in the M shell.

Explanation:

M shell has the capacity to store #8# electrons.
We have divided #18# in three sub shells of the shell M ,e.g.,
#3s = 2#
#3p = 6#
#3d = 10#
Now add them,
#2+6+10# = #18#
Electronic configuration of #Ca# =
#1s^2, 2s^2,2p^6, 3s^2,3p^6, 4s^2#, where;
#K = 2#
#L = 8#
#M = 8#
#N = 2#

You can take #18# as a whole but, if you'll take the M shell it contains 8 electrons, if we'll also count its sub shell electro configuration then it will be greater than 8.

Related questions
See all questions in Electron Configuration
Impact of this question
4134 views around the world
You can reuse this answer
Creative Commons License