The electron cloud model was developed in 1924 by Erwin Schrödinger and Werner Heisenberg. The model is a way to help visualize the most probable position of electrons in an atom. The electron cloud model is currently the accepted model of an atom. The atoms were traveling at such a high speed that there was no predictable time or place for the electron to be. The electrons were like a blur which is where they got the 'Electron Cloud' from.
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