The electron in a hydrogen atom is in the first excited state, when the electron acquires an additional 2.55 eV of energy. What is the quantum number n of the state into which the electron moves? (Enter an integer value.)
Any help is appreciated! Thanks so much!
Any help is appreciated! Thanks so much!
-
Well, you (should) know the energy level is given by -13.6 eV divided by n squared.
The first excited state, which is n=2 has energy level -13.6 / 4
Calculating the rest you'll find for n=4 with energy level -13.6 / 16 that the difference between the levels n=2 and n=4 is exactly 2.55 eV.
The first excited state, which is n=2 has energy level -13.6 / 4
Calculating the rest you'll find for n=4 with energy level -13.6 / 16 that the difference between the levels n=2 and n=4 is exactly 2.55 eV.