In an atom, the total number of electrons having quantum numbers n=3, |ml|=0 and ms=−12 is :
The correct option is D 3
|ml|=0 means ml is zero
Since n = 3, the possible values of `l' are 0,1 and 2 .
The orbitals in shell 3 with m = 0 are, 3s orbital,one of the 3p orbitals and also one of the 3d orbitals. So total of 3 orbitals.