00:01
Hi, here we have to find that which one of this set of quantum number is not possible.
00:06
So set of quantum number means n, l, ml and ms.
00:12
Where n is principal quantum number, l is azimuthal quantum number, ml is magnetic quantum number and ms is spin quantum number.
00:20
So the first set of quantum number is given 2, 0, minus 1 and half.
00:23
So this is n, this is l and this one is ml and this one is ms.
00:30
So n is equal to 2 means there is 2 orbital that is s and p.
00:36
For s, the magnetic azimuthal quantum number is 0 and for p it is 1.
00:41
That means this 0 is possible and for l is equal to 0 means this belongs to s orbital and for s orbital the ml value is from 0 to 0.
01:01
That means 0 so it will not allowed and ms for electrons is plus half and minus half so it is also possible.
01:12
That means because ml is not belongs to s orbital so this set of quantum number is not possible...