## Is there ever a negative frequency

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

charlotte_jacobs_4I
Posts: 63
Joined: Fri Sep 28, 2018 12:29 am

### Is there ever a negative frequency

For Rydberg's equation should the answer ever be negative? What if you go from n=4 to n=2 or n=3 to n=5?

skyeblee2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

### Re: Is there ever a negative frequency

There is no such thing as a negative wavelength or frequency. The negative sign you may calculate using Rydberg's equation is simply a representation of energy being either released or emitted and can be ignored in terms of frequency. Going from n=4 to n=2 emits energy, so the equation yields a negative answer. But, again, you can ignore this if you are trying to calculate frequency or wavelength.