00:01
Let's suppose the energy levels of a particular atom are given as negative 36 electron volts divided by n.
00:08
So we wanna find the excitation energy of the object in the third state.
00:12
So e3 is just gonna be negative 36 electron volts divided by three, so of course that's negative 12.
00:20
All right, if we're looking at the excitation energy, it's like you have to add 12 electron volts.
00:27
And then the two, i guess a is asking for the excitation energy, and then b is asking for the energy required to ionize it from that energy.
00:40
So that'll be 12.
00:41
And then the maximum number of different energy photons that can be emitted as it goes from the third state.
00:47
So we'll call this capital n.
00:49
We have one from the third to the second state, and then from the second to the first state, plus one from the third to the first state.
00:57
So just three in total.
00:59
And the maximum wavelength photon is just going to be hc over e, where this is when it goes from the third state to the ground state, this.
01:12
So this will be 1242 nanometers times an electron volt divided by the energy difference between the third state and the ground state...