jan 7, 1926 - Electron Cloud Model: The electron cloud model was developed by Erwin Schrödinger; It consisted of a dense nucleus surrounded by a cloud of electrons at various levels in orbitals; Where the cloud is most dense, the probability of finding the electron is greatest, and the electron is less likely to be in a less dense area of the cloud
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Date:
jan 7, 1926
Now
~ 99 years ago