6. SHAPES OF MOLECULES AND INTERMOLECULAR FORCES QUESTIONS AND ANSWERS.Buy Quality Materials!
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Module
CHEMISTRY
Institution
CHEMISTRY
6. SHAPES OF MOLECULES AND INTERMOLECULAR FORCES QUESTIONS AND ANSWERS.Buy Quality Materials!
There are x bonded electron pairs and y lone electron pairs.
Electron pairs repel each other.
Lone electron pairs are more repulsive than bonded electron pairs.
Molecular Shapes
4 BP
0 LP
109....
6. SHAPES OF MOLECULES AND INTERMOLECULAR
FORCES QUESTIONS AND ANSWERS.Buy Quality Materials!
There are x bonded electron pairs and y lone electron pairs.
Electron pairs repel each other.
Lone electron pairs are more repulsive than bonded electron pairs.
Molecular Shapes
4 BP
0 LP
109.5'
Tetrahedral
3 BP
1 LP
107'
Pyramidal
2 BP
2 LP
104.5'
Non-Linear
2 BP
0 LP
180'
Linear
3 BP
0 LP
190'
Trigonal Planar
The attraction of a bonded atom for the pair of electrons in a covalent bond.
Electronegativity
The bonded electron pair is shared equally between the bonded atoms.
Non-Polar Bond
The bonded electron pair is shared unequally between the bonded atoms.
Polar Bond
At any instant, an instantaneous dipole will exist.
The instantaneous dipole induced a dipole on a neighbouring molecule.
The induced dipole induces further dipoles on neighbouring molecules.
Oppositely charged dipoles attract.
Instantaneous Induced Dipole-Dipole Forces
A difference in electronegativity results in permanent dipoles.
Oppositely charged dipoles attract.
Permanent Dipole-Dipole Forces
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