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In this video I will explain how the energy equation differ in the more complex atoms (than the Bohr atom) of the helium and lithium atoms where there are 2 and 3 electrons orbiting their nuclei, respectively. By removing all but one of the electrons, we will be left with the ionized helium and lithium atoms.
Next video in this series can be seen at:
https://youtu.be/1tQaoyeRXoY