Out of bonding and antibonding molecular orbitals which one has lower energy and which one has higher stability?
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bonding molecular orbital has lower energy and higher stability
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The molecular orbital obtained by the additive interaction of atomic orbitals called bonding molecular orbital.
The molecular orbital obtained by the subtractive interaction of atomic orbitals called bonding molecular orbital.
In boding molecular orbital, the electron density is concentrated in between the nuclei hence greater attraction and lower energy.
In anti-bonding molecular orbital, electron density is away from the nucleus hence less attraction and high energy.
Therefore, the anti-bonding orbital is higher in energy than the bonding orbital because of the decrease in electron density between the nuclei.
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