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### energy emitted

Posted: Thu May 10, 2018 9:58 am
What is the difference between the equations v=R((1/(n1^2))-(1/(n2^2))) and -hR/n^2? What are the similarities? What is their overall relationship?

### Re: energy emitted

Posted: Thu May 10, 2018 1:27 pm
The first equation is used to calculate the frequency of the emitted light when electrons transition between energy levels. When light is absorbed, the transition is up to a higher energy level. When light is emitted, the transition is down to a lower energy level. The calculation is always done using (final energy level)- (initial energy level). The second equation is used to calculate the energy at a specific energy level n. However, it can be incorporated into calculating energy transitions. deltaE= Ef-Ei (deltaE= (-hR/n1^2) - (-hR/n2^2). Note that these equations only apply for the hydrogen atom.

### Re: energy emitted

Posted: Thu May 10, 2018 1:32 pm
Right, the first equation solving for frequency is just a manipulation of the second equation that finds levels at different energy shells!