00:01
Okay, so we have to write down all the sets of the quantum numbers.
00:08
So here we have the principal quantum number.
00:13
Here we have the orbital quantum number, the magnetic quantum number, and the spin quantum number that corresponds to the electrons in a completely field 4f subshell.
00:33
First of all, a 4f sub -shell means that the principal quantum number maximum is actually the principal quantum number is always four.
00:49
It's not even maximum, it's always four.
00:54
Therefore, we can say that to the 14 sets always begins with the 4 and the principle.
01:05
Quantum number so we just need to calculate the other three numbers so let's begin with the first one the angular quantum number always is one size lesser than the principal quantum number therefore we can say that all the sets angular quantum number is going to be so so all sets of the principle begins with four and all sets of the orbital begins with three.
01:53
And the list goes on here.
01:56
Now we have to look to the magnetic quantum number.
02:04
So these two are the only ones that change...