Question #d4253

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Diego Martínez Paz
Jul 31, 2017

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Explanation:

Atomic orbitals mix together to form molecular orbitals.

In the diatomic molecules, #s-p# mixing yields an energy increase and decrease in the σ2pz and σ2s orbitals respectively.

The last 2 electrons go into degenerate molecular orbitals and their spins remain parallel, generating the triplet state.

In its more energetic form, singlet oxygen, is formed when the electrons pair up.

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