APS Logo Kids
CDDice in HandsE=hvCatsSpherical HarmonicsLaserStringIonization Reaction Ionization Reaction

If a photon hits an atom with enough energy, the atom may absorb it and kick out an electron. This is called an ionization reaction, and is at the heart of the photoelectric effect. Einstein received the Nobel Prize in Physics for his explanation of the photoelectric effect.

Ionization Reaction Tile Ionization Reaction Line Art
Ionization Reaction Kid


Artwork Columns:
Matter | Quantum | Relativity | Einstein's Life

Terms of Use | © 2012 American Physical Society