## Explaining Rydberg Equation

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

NatBrown1I
Posts: 62
Joined: Fri Sep 28, 2018 12:17 am

### Explaining Rydberg Equation

Why is there a - sign in front of the equation E= -hR/n^2?

Reva Kakaria 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am
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### Re: Explaining Rydberg Equation

I think it's a convention, because when an electron's energy is zero, it's on the verge of escaping from the atom. If the electron is closer to the negative, it has less potential energy, so it becomes negative. The negative sign lets us differentiate between attached electrons and free electrons; the more negative the energy, the more tightly bound the electron is to the nucleus, and the higher the energy, the less stable the electron is.