00:01
Okay, so in this problem, the ionization energy is just the difference between the energies of the two states.
00:11
So in this problem, the first state we need to calculate is the energy when n equals infinity.
00:22
And the second one is when the energy is when n is equal 4.
00:27
So the ionization energy is just this difference in here.
00:34
And we need to remember that by definition, the energy in the bore model is just minus 13 .6 z squared divided by n square.
00:50
So for the first case, when the n is infinity, we have our energy.
00:59
Let's rewrite this.
01:02
To the first case, when n is infinity, we have the energy equals zero joules.
01:11
And for the second case, when n equals 4, we have minus 13 .6 divided by 4 square...