## energy emitted

H-Atom ($E_{n}=-\frac{hR}{n^{2}}$)

Melissa_Aguirre1J
Posts: 38
Joined: Tue Nov 14, 2017 3:02 am

### energy emitted

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?

Jack Martinyan 1L
Posts: 32
Joined: Thu Feb 22, 2018 3:00 am
Been upvoted: 1 time

### Re: energy emitted

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.

Nina_A_Section1E
Posts: 31
Joined: Fri Apr 06, 2018 11:01 am
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### Re: energy emitted

Right, the first equation solving for frequency is just a manipulation of the second equation that finds levels at different energy shells!