Rydberg's Constant

[Rosselyn_Machado_2B]

Hi,
I have written down in my notes that Rydberg's constant is 3.29 x 10 ^15 Hz but can someone please explain what it's used for and how to use it please?

[Arnav Ranade 2K]

You can use Rydberg's Constant to figure out the frequency of light that is emitted when an electron transitions from a higher energy level to a lower energy level in a hydrogen-like atom.

The equation E = -hR/n^2 (where h is Planck's constant and R is Rydberg's constant) gives the energy of an electron at the energy level n, so to find the frequency of light emitted by an electron transition, you would just find E for the initial n1 and final n2, and then subtract them to find the energy of the electron transition.

[806063252]

This is specifically for Hydrogen only, it changes depending on the element.