Forces of Attraction
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What are the major types of bonds?
Intramolecular bonds: ionic, metallic, covalent bonds...
Intermolecular bonds: Hydrogen bonds and Van der Waals forces
What are ionic bonds?
The electrostatic attraction that forms between oppositely charged ions formed by the transfer of electrons from one atom to another. In ionic bonds, both atoms attain Noble gas configuration.
What are the properties of ionic compounds?
Relatively high melting and boiling points
Conducts electricity when molten or in aqueous solution
Dissolves in polar solvents
Forms giant structures with non-directional bonds
Non-conductors of electricity in solid state
What causes cations to be highly polarizing?
High positive charge
What is a metallic bond?
A lattice of positive ions surrounded by a sea of mobile electrons.
What are the properties of metals?
Form giant lattice structure where number of valence electrons determine the strength of the metal
Good electrical conductivity
High melting and boiling point
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