1. Unit 6: Particles with Internal Structure
Ionic Particles
Naming Ionic Compounds

2. Warm Up 2/16-17 ___ Sodium atoms ___ Magnesium atoms
___ Bromine atoms ___ Oxygen atoms
Formula: Formula:
___ Potassium atoms ___ Aluminum atoms
___ Oxygen atoms ___ Oxygen atoms
Formula: Formula:

3. Ionic Compounds Ionic substance have
High melting point (mp) and boiling point (bp).
What does that mean?
They conduct electricity when molten.
When soluble, the aqueous solutions are strong electrolytes.

4. Solid, Liquid (or molten), and aqueous NaCl

5. Charges from the periodic table

6. Ions Monatomic- single atom.
ex: Al+3
Polyatomic- collection of covalently bonded atoms with a net charge.
ex: NO3-1, NH4+1

7. Electroneutrality
Electroneutrality: equal numbers of positive and negative charge.

8. Naming cations: Simple cations take the name of the parent atom. Ex:
Na+ sodium ion
Ba+2 barium ion
When an element forms more than one cation, we use Roman Numerals to give the oxidation state/charge. Ex:
Fe+2 iron(II) ion Fe+3 iron(III) ion
Cu+ copper(I) ion Cu+2 copper(II) ion

9. Naming anions:
Simple anions take the root of the element name and add the suffix -ide.
Ex:
I- iodide ion
S-2 sulfide ion
N-3 nitride ion
Name the following simple anions:
P-3
phosphide ion
O-2
oxide ion

10. Naming Binary Ionic Compounds:
The name consists of two words, the names of the cation and anion. Ex:
KCl potassium chloride
ZnO zinc oxide
AlCl3 aluminum chloride
Why 1-Al+3 ion and 3-Cl- ions?
Electroneutrality!
Cu2S copper(I) sulfide
CuS copper(II) sulfide
Remember, copper has two oxidation states

11. What is the name of the following ionic compounds
NaCl
Sodium chloride
CaCl2
Calcium chloride KI
Potassium iodide
CuI
Copper(I) iodide
CuI2
Copper(II) iodide

12. What is the formula of the following ionic compounds?
potassium bromide (K+ and Br-)
KBr
calcium oxide (Ca+2 and O-2)
CaO
lithium nitride (Li+ and N-3)
Li3N
iron(III) chloride (Fe+3 and Cl-)
FeCl3
calcium nitride (Ca+2 and N-3)
Ca3N2

13. Exit Ticket 2/16-17 1) What type of solid is shown here?
2) How do you know? (State the rule of identification for this type of solid).