1. Ch. 15 Notes---Ionic Bonding & Ionic Compounds
Ionic Bonds
Form when ___________ transfer their _____________ electrons to a _______________.
The forces of attraction between the ____________ (+) and the _____________ (-) bind the compound together.
How to Represent an Ionic Bond
Electron Configuration:
Na 1s2 2s2 2p6 3s1
Cl 1s2 2s2 2p6 3s2 3p5
metals
valence
nonmetal
cation
anion
Na… ___ 3s ↑
Cl… ___ ___ ___ ___
3s p ↑ ↓ ↑ ↓ ↑ ↓ ↓

2. How to Represent an Ionic Bond
2) Electron Dot Notations:
Na Cl  [ ] [ ]
Practice Problems: (1) Draw the electron dot notation for the formation of an ionic compound between sodium and oxygen.
(2) Draw the electron configuration notation for the formation of an ionic compound between magnesium and fluorine.
Na+1
Cl -1

4. S [ S -2] K [K+1] Practice Problems:
3) a) Draw the electron dot notation for a potassium atom.
b) Draw the electron dot notation for a potassium ion.
(4) a) Draw the electron dot notation for a sulfur atom.
b) Draw the electron dot notation for a sulfur ion. K
[K+1] S
[ S -2]

5. Properties of Ionic Compounds and Covalent Molecules
_______________ of electricity when dissolved water or melted.
formed between __________ and _________________
have _________ melting points
usually ________ soluble in water
form ___________________ solids
Conductors
metals
nonmetals
high
(dissolved salt)
very
crystalline

6. Crystalline Patterns

7. Properties of Ionic Compounds and Covalent Molecules
Molecular:
________________ of electricity always
formed between two _______________
usually have ________ melting points
solubility in water _______: (polar =dissolve; nonpolar = insoluble)
For a compound to to conduct electricity it must have:
(1) Charged Particles (_________)
(2) Particles Free to Move (___________ or __________ phase)
Insulators
nonmetals
low
varies
ions
liquid
aqueous

8. Demonstration PureH2O great conductor good conductor poor conductor
nonconductor