Ciro Santilli
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Why do multiple electrons occupy the same orbital if electrons repel each other? | 🗖 nosplit | ↑ parent "Hartree-Fock method" | 57

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As shown at Schrodinger equation solution for the helium atom, they do repel each other, and that affects their measurable energy.
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However, this energy is still lower than going up to the next orbital. TODO numbers.
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This changes however at higher orbitals, notably as approximately described by the aufbau principle.
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