CHEMICAL BONDING AND MOLECULAR
GEOMETRY
DEFINITION
Intramolecular bond – a bond which occurs between atoms within molecules
Intermolecular force – a weak force of attraction between molecules, ions, or
atoms of noble gases
Covalent bond – a sharing of at least one pair of electrons by two non-metal
atoms
Electronegativity – a measure of the tendency of an atom to attract a bonding
pair of electrons
Non-polar covalent (pure covalent) - an equal sharing of electrons
Polar covalent bond – unequal sharing of electrons leading to a dipole forming
(as a result of electronegativity difference)
Ionic bond – a transfer of electrons and subsequent electrostatic attraction
Metallic bond – a bond between a positive kernel and a sea of delocalised
electrons
0 0.1 polar covalent 1.7 2.0 ionic 3.0
Metal=ionic
Non-metals = polar covalent
GEOMETRY
DEFINITION
Intramolecular bond – a bond which occurs between atoms within molecules
Intermolecular force – a weak force of attraction between molecules, ions, or
atoms of noble gases
Covalent bond – a sharing of at least one pair of electrons by two non-metal
atoms
Electronegativity – a measure of the tendency of an atom to attract a bonding
pair of electrons
Non-polar covalent (pure covalent) - an equal sharing of electrons
Polar covalent bond – unequal sharing of electrons leading to a dipole forming
(as a result of electronegativity difference)
Ionic bond – a transfer of electrons and subsequent electrostatic attraction
Metallic bond – a bond between a positive kernel and a sea of delocalised
electrons
0 0.1 polar covalent 1.7 2.0 ionic 3.0
Metal=ionic
Non-metals = polar covalent
