how we can determine the number of shell present in K L M N shell and the sub shell spdf
Asked by | 2nd Jun, 2009, 04:39: PM
Shell number is n which starts from 1,2,3,4,....
If n=1, its called K shell, if n=2 its called L shell, and so on.
The first shell, n=1 has two electrons, the second shell n=2, can have a maximum of 8 electrons, if n = 3 , shell can have a maximum of 18 electrons.
This is calculated by the fomula that maximum number of electrons that can be accomodated in a shell are 2n2
But keep this in mind , if any shell is the outermost shell it cannot have more than 8 electrons.Now the next part, To find the sub shell number:
It is denoted by a symbol l ,
the value of l depends on the value of n.
values of l = 0,1,2, .....(n-1)
l=0 s subshell
l = 1 is p subshell
l =2 is d subshell
l = 3 is f subshell
Now suppose we have the third shell, i.e. for the third shell , n = 3
then l will be equal to 0,1,2
SO, in the thirsd shell, three subshells are present , i.e. s,p and d subshell
So, shell is denoted by n and subshell is denoted by l
Answered by | 3rd Jun, 2009, 03:21: PM
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