Polar vs Non-Polar
made with two or more non-metals
no electrical poles
one end has a positive charge, the other has a negative.
electrons divided more equally
has electrical poles
charges cancel out
soluble in water
not soluble in water, but maybe like oil
Ionic vs Covalent
electrons not shared equally
electrons shared equally
high melting point
low melting point
between one metal and one non-metal
between two non-metals
weakest intermolecular force.temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles.
occurs between two polar molecules. slightly stronger than london dispersion. slightly positive attracts to slightly negative end. a good example is hydrochloride (HCl)
attraction between an ion and a neutral molecule that has a dipole. most commonly found in solutions.ion with non-polar molecule.weaker than covalent or ionic bonds. polar water and sodium ion.
Non-Polar? Or Polar?
Looking at Lewis Structure
if bonds are symetrical, it is non-polar. if it is asymmetrical it is polar.
hydroxide salts (slightly)
Group 1 (Li+, Na+, etc)
hydroxide salts of transition metals
sulfides of transition metals
Group 17 (F-,Cl-,Br-)
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phosphates and fluorides
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