00:02
Hi there.
00:03
In this question, we want to know how many electrons can have the quantum numbers, n equals 3, and m sub l equals 0.
00:11
So to answer that, let's talk about the first three quantum numbers.
00:14
The first three quantum numbers describe the orbitals.
00:18
So first quantum number, the principal quantum number n is the energy level.
00:24
As we know, so that's distance from the nucleus, and it needs to be a positive integer.
00:35
All right.
00:36
The next quantum number, the angular so momentum quantum number l describes the sub level.
00:44
And it is an integer that ranges from 0 to n minus 1.
00:58
Actually, let me put that on a separate line.
01:09
Ok, so let's start talking about the electrons or the quantum numbers that we are given in this problem.
01:16
For n, we have 3.
01:20
For l, since n is 3, l can be 0, it can be 1, or it can be 2 because it ranges from 0 to n minus 1...