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Which restriction arises when multiple electrons occupy overlapping atomic orbitals?

A)Electron correlation energy increases sharply
B)Quantum entanglement of spins disappears
C)Orbital hybridization becomes energetically prohibited
D)Heisenberg uncertainty principle is directly violated

💡 Explanation

Electron correlation energy increases steeply because the Pauli exclusion principle prevents electrons from occupying the exact same quantum state; therefore electrons must occupy successively higher energy states, rather than all crowding into the lowest available.

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