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← ScienceWhich outcome occurs when lithium atoms bond in a molecule?
A)Molecular orbital formation reduces total energy✓
B)Atomic orbitals maintain distinct electron identity
C)Electron correlation causes independent sub-shells
D)Core electrons block valence shell interactions
💡 Explanation
Covalent bonds form because electron delocalization during molecular orbital formation decreases the kinetic energy of shared electrons, which reduces the total molecular energy; therefore bonding occurs, rather than separate atoms because the overall energy decreases.
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