Ionic Compounds

chemical bond

force that holds two atoms together
cation
- positively charged particle
- give electrons
anion
- negatively charged particle
- take electrons
ionic bond

electrostatic attraction between oppositely charged particles
ion

charged particle
main idea of ionic compounds

give and take valence electrons
ionic bond of hydrogen

+1/-1
ionic bond of atom with 1 valence electron

+1
ionic bond of atom with 2 valence electrons

+2
ionic bond of atom with 3 valence electrons

+3
ionic bond of atom with 4 valence electrons

+/- 4
ionic bond of atom with 5 valence electrons

-3
ionic bond of atom with 6 valence electrons

-2
ionic bond with 7 valence electrons

-1
rule for writing formulas for ionic compounds

needs to be neutral lowest whole number ratio
properties of ionic compounds
- 1. high m.p. & b.p.
- 2. hard, solid at room temperature
- 3. form crystal lattice structure
- 4. form electrolytes when dissolved in water
what occurs with an ionic compound when it is dissolved in water?

atoms become seperate and free
polyatomic ion

ion made up of mroe than one atom
oxidation state

positive charge of an ion

Author

ht2lvu

3826

Card Set

Ionic Compounds

Description

Basic chemistry on ionic compouds & etc.

Updated

1/13/2010, 6:26:31 AM

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