Multielectron Atoms - MultielectronAtoms ,whichhasonlyone...

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Multielectron Atoms While Quantum Theory gives exact equations describing the H-atom, which has only one  electron, it runs into problems trying to give exact equations of atoms with many  electrons. This is because in addition to the electrostatic attraction between the electron  and the positively charged nucleus, there are electrostatic repulsions between electrons.  The problem starts to get complicated quickly. In spite of this problem, approximate  solutions can be obtained, which can, in fact, be quite accurate. For a multi-electron  atom the energy of a particular electron in the atom is given by Which looks the same as for a single electron atom except that now we use an effective  charge for the positively charged nucleus. The effective charge is reduced from the full  charge due to the shielding of the nuclear charge by other electron in the atom. The effective nuclear charge equates the number of protons in the nucleus, 
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Multielectron Atoms - MultielectronAtoms ,whichhasonlyone...

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