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Unformatted text preview: ster than attractive forces
at distances closer than 74 pm
energy 74 pm H• + H•
H H H -436 kJ/mol H2
Internuclear distance H Models for Chemical Bonding
Valence Bond Theory
constructive interference between electron
waves of two half-filled atomic orbitals is basis
of shared-electron bond
Molecular Orbital Theory
derive wave functions of molecules
by combining wave functions of atoms 2.3
Bonding in H2:
The Valence Bond Model Valence Bond Model
Valence Electron pair can be shared when half-filled
orbital of one atom overlaps in phase with
half-filled orbital of another.
half-filled Valence Bond Model 1s...
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- Fall '11