00:03
Hi there.
00:04
In this question, we are working with the sub -levels, s, p, d, and f.
00:12
And whenever there is an s -sub level, the s is spherical -shaped.
00:17
So whenever there's an s, there's that sphere shape, or in other words, only one s -orbital at an energy level.
00:25
When we're working with p, p has three orientations in space.
00:30
Along the x -axis, along the y -axis, and along the z -axis in space.
00:35
It's that double dumbbell.
00:37
And so in other words, there are three p -orbital anytime we have p -orbital.
00:42
For d, i'm not going to attempt to draw those, but there are five of them.
00:47
And for f, there are actually seven different orbitals predicted by mathematical equations.
00:54
All right.
00:55
And then if we talk about the poly exclusion principle.
00:59
Poly's exclusion principle says that there can be a maximum of two electrons in any orbital.
01:10
And if there are two, they have to have opposite spins.
01:16
Well, that means if there's one s orbital and we can place two electrons in that, that gives us a maximum number of two electrons in any s orbital.
01:28
For p orbitals, since there are three of those and we put two electrons in each one, that gives us a maximum of 6 electrons in p orbitals.
01:37
D -orbitals, there are 5.
01:39
Again, two electrons in each one, gives us a maximum of 10 electrons in d -orbitales.
01:46
And in f, you guessed it, 7 times 2, gives us a maximum of 14 electrons.
01:53
All right, so that brings us to this question.
01:57
In this question, letter a tells us we have a 6 -s orbital.
02:03
The fact that the energy level is 6 doesn't really mean anything about the number of electrons we can put in the orbital...