Higher energy molecular orbital destabilizing molecules.

Orbital formed from out-of-phase atomic contributions.

Characterizes less stable electron configurations in bonding.

Associated with repulsive interactions between electrons.

Impedes bond formation due to increased energy level.

Anti-bonding orbital: Orbital that weakens molecular bonds.

Energy state: Higher energy level than bonding orbitals.

Electron configuration: Arrangement of electrons in anti-bonding states.

Molecular stability indicator: Suggests instability due to electron placement.

Chemical reactivity factor: Influences reactions by destabilizing molecules.