WEBVTT
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in this exercise, we have a hydrogen atom that's
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initially in the ground state. So and why is
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the initial state equals one and jumps to the third
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state after absorbing a photo? So unethical street in
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question? A we want to calculate bought is the
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energy of the observed Fulton. So due to conservation
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of energy, you the energy of the fulton A
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gamma is just the final energy off the hydrogen atom
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, which is e three. The energy of the
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third level. Mine is the initial energy you want
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. Now, remember that the energy of the 10th
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level of the hydrogen atom is minus 13.6 electoral votes
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divided by in square. And for that reason de
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Goma is 13.6 times 1/1 squared, which is this
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one minus 1/3 square, which is nine. Let
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me just write nine a little better here. So
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this is equal to 12.1 electron volts. That's the
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energy of the absorbed Fulton. Okay, in question
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be I'll have the electric coming back to the ground
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state, So it, uh, it's initially initially
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in the third state, and it transitions back to
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the final state n f equals one, and we
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want to calculate all the possible energies all the possible
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, the energies of the fulton that the the atom
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can emit when doing this transition. So there are
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three possible transitions for the Adam to go from the
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third energy level to the 1st 1 you can go
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directly from the third to the first. In that
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case, the energy of the Fulton is just the
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energy of the third energy level. Mine is the
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energy of the 1st 1 So that's 13.6 one minus
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19 which is 12.1 of the crime votes. It
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can go from the third energy level to the second
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and then go to the second from the second to
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the first and the energy of a photon. In
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that case, in the first transition from the third
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energy level to the 2nd 1 is three minutes to
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, and that's 13.6 eloquent votes times one fourth man
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is 19 Okay, so this is 1.89 electoral votes
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and the energy of the Fulton when ah, the
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Adam transitions from the second energy level to the 1st
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1 is a two man is the one. So
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this is 13.6 one minus 1/4 and it is 10.2
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electoral votes. Okay, so these are the energies
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of the Fulton's that the atom can emit when transition
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transitioning from the third energy level to the 1st 1