Hund's rule
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Re: Hund's rule
In order to achieve the lowest energy state and increased stability, the electrons need to have parallel spin.
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Re: Hund's rule
Hund's rule states that due to e- repulsion, e- in the same subshell occupy different orbitals with parallel spin. This allows for the lowest energy state. All orbital shells must be occupied by one e- before an orbital can be paired up with two.
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Re: Hund's rule
The parallel spins are from electrons occupying empty orbitals first. After that, they start to pair up, which leads to opposite spins.
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