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Electron Spin State Orbitals?

Chemistry
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why do electrons in the same orbital must have opposite spin states?

Oct 23rd, 2014

Two fermions (particles that make up matter) cannot occupy the same quantum state. If they are in the same orbital and have the same spin then they will be occupying the same quantum state- which is not possible because that would violate a fundamental property of matter.According to the Pauli exclusion principle, no two electrons can have the same four quantum numbers. Two electrons in the same orbital will not have the same four quantum numbers as long as they have opposite spins, +1/2 and -1/2.

Oct 23rd, 2014

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Oct 23rd, 2014
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