A quick question in on Emitted Energy
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A quick question in on Emitted Energy

[From: ] [author: ] [Date: 11-09-21] [Hit: ]
2E-18), or negative (-2.3E-18)?Also,Or does (-2E-18) Release more energy than(-3E-18)?-You have calculated the difference of 2 energy levels in hydrogen.......
I solved a question that uses this formula, (E= RH(1/nf2 -1/ni2)

My Answer came out (-)1.2 x 10^-18 and my other answer is (-)2.3 x 10^-18

So which Emits the Most energy?
Is it the negative (-1.2E-18), or negative (-2.3E-18)?

Also, does (-3E-18) Release more energy than (-2E-18)
Or does (-2E-18) Release more energy than (-3E-18)?

-
You have calculated the difference of 2 energy levels in hydrogen. Your formula should be
E= RH(1/nf^2 -1/ni^2). (You should show the squaring of the n values.)

Also you need units for your answers. This will depend on the units used for RH, but is probably joules(J).
_____________________________
The sign simply tells you which way you are going.

If nf
If nf>ni (e.g going from level 3 to level 4) you will get a negative answer indicating a photon has been absorbed because you have 'gone up' energy levels.

Both of your answers are negative. So neither of your answers refers to emitting energy; they both refer to absorbing energy. You might want to re-check what you have done.

To compare the actual amounts of energy (absorbed or emitted), simply ignore the signs. So (-3E-18)units is a bigger amount of energy than (-2E-18)units.
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