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Atomic Theory of the First 20 Elements
In this Vodcast I firstly describe the atom and the subatomic particles of the Proton, Neutron & Electron. Next is the Atomic number and the Mass number and how to work out the numbers of Protons, Neutrons and Electrons. Then I describe the notion elelctron configurations before applying all this information to He, Be, F, Na, P & Ca.
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