How electron and energy related together?

1 Answer

You must distinguish free electrons and bonded electrons.


The first electrons indicate their energy by their motion and they can have any (not infinite) value of energy, different of zero. When an electron is confined and bonded in a limited system (as an atom for example), it can have only well defined values of energy (discrete levels), determined by Quantum Mechanics (permitted by the solutions of Schrodinger equation ).