Write about subsidary quantum number (l )

Explanation

it is also known as azimautal quantum number or subsidiary quantum number it defines the three dimensional shape of the orbital
for example in the first shell there is only one sub shell which corres ponds to l=0
in the third shell (n=3) there are four sub shell l =0 1,2,3
in sub shell given specific value of l
sub - shell corresonding to defferent value of l are represented by the following symbols.

The following given table shows the permissible vale of l for given principle quantum number and the corresponding sub shell notation.