Negative Signs

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Lauren Huang 1H
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Negative Signs

Postby Lauren Huang 1H » Tue Oct 16, 2018 10:55 pm

What does it mean when the answer from using the equation (E=-hR/n^2+hR/n^2) to find the energy difference between two energy levels in a H-atom comes out to be negative?

pamcoronel1H
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

Re: Negative Signs

Postby pamcoronel1H » Tue Oct 16, 2018 11:12 pm

If you get a negative value when calculating the Energy difference, then that means that the electrons went from a higher energy level(n) to a lower energy level(n) and therefore are losing energy. If they're losing energy, that would mean that the atom will EMIT light.

leediane0916
Posts: 31
Joined: Fri Sep 28, 2018 12:29 am

Re: Negative Signs

Postby leediane0916 » Wed Oct 17, 2018 12:05 am

the E resulting from this equation should be negative because you are going from a higher E level to a lower E level, during which E is given off as light, so the loss of E as photons are expressed through the negative sign


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