Bohr Model of Hydrogen
Make the electron jump between energy levels and see the photons absorbed and emitted.
Electron level n1
Energy-13.60 eV
Last jump–
Photon wavelength–
Series / colour–
What you can learn
- Electrons in an atom can only have certain energies: the energy levels.
- Jumping down releases a photon; jumping up needs a photon of exactly the right energy.
- For hydrogen, E = −13.6 eV / n².
Frequently asked questions
Why do atoms emit only certain colours?
Because electrons can only drop between fixed energy levels, so each jump releases a photon of one specific energy and colour.
What is the Balmer series?
Transitions from higher levels down to n = 2. Four of them are visible: red, cyan, blue and violet.