Rydberg's Equation (hydrogen)

H-Atom ()

Moderators: Chem_Mod, Chem_Admin

Brandon Mo 4K
Posts: 70
Joined: Fri Sep 28, 2018 12:15 am

Rydberg's Equation (hydrogen)

Postby Brandon Mo 4K » Thu Oct 11, 2018 2:56 pm

What exactly is Rydberg's equation?

In the book, the equation is given as:
v = R((1/n1^2) - (1/n2^2))

Is this the same equation as En = - hR/n^2 or is it something different? Also, how are we supposed to use this formula when working on problems?

Posts: 24
Joined: Fri Sep 28, 2018 12:23 am

Re: Rydberg's Equation (hydrogen)

Postby rikolivares » Thu Oct 11, 2018 3:22 pm

En = - hR/n^2 is a simplified version that measures the lost energy of an electron. If you're trying to calculate the energy loss of a level, you need to know the frequency and level to solve it.

Ryan Troutman 4L
Posts: 68
Joined: Fri Sep 28, 2018 12:22 am

Re: Rydberg's Equation (hydrogen)

Postby Ryan Troutman 4L » Sat Oct 13, 2018 4:30 pm

So the En equation is the simplified version of the full Rydberg equation. To use it in a problem you should be given integer values (so n=2 and n=1) and you solve for whatever the problem asks for. The top numbers are constant (Plancks and Ryberg) divided by the energy level given squared, which would allow you to solve for En.

Return to “Bohr Frequency Condition, H-Atom , Atomic Spectroscopy”

Who is online

Users browsing this forum: No registered users and 3 guests