1. Naming Ionic Compounds

2. Chemical reactions occur when atoms gain, lose, or share electrons.
Metals
Nonmetals
Nonmetals _____________ electrons.
This gives them a ____ charge.
Negative ions are called ___________.
gain / accept _
anions
Metals ________________ electrons.
This gives them a ____ charge.
Positive ions are called ___________.
lose / donate +
cations

3. Look for the Roman Numeral!
Remember that the charge of an ion can be determined by its place on the Periodic Table. +1 +4 or -4 +2 +3 -3 -2 -1
Look for the Roman Numeral!

4. For each elements on your notes, predict the charge of its most common ion using the periodic table.-3 +2 +2 -1 +1 +2 -1 -2 +1 -1 -2 +1 -3 +1 -1

5. Na Na+ + e- Mg Mg+2 + 2e- Rules for Naming Ions
When metals lose electrons they become ions, but their name does not change. Na
Na+ + e-
electron
sodium
sodium Mg
Mg e-
2 electrons
magnesium
magnesium

6. F + e- F- S + 2e- S-2 Rules for Naming Ions
When nonmetals gain electrons they become ions, and their name does change.
F e- F-
fluoride
fluorine
electron
S e-
S-2
sulfur
2 electrons
sulfide

7. chlor- + -ide = chloride
Rules for Naming Ions
1. The names of metals do not change.
2. Changing the name of nonmetals:
root of element name ide = name of ion
Examples:
The name of chlorine’s ion:
chlor ide = chloride
The name of nitrogen’s ion:
nitr ide = nitride

8. Examples of naming ions:
The name of calcium’s ion:
calcium
(The names of metals don’t change!)
The name of oxygen’s ion:
ox ide = oxide
The name of aluminum’s ion:
aluminum
(The names of metals don’t change!)

9. Write the name of each of the ions on your notes.
sulfide
lithium
nitride
bromide
potassium
chloride
oxide
hydrogen (+), hydride (-)

10. There are also ions that form after elements have shared electrons
There are also ions that form after elements have shared electrons. These ions are known as polyatomic ions, and each polyatomic ion already has a name.

11. Write the name of each of the polyatomic ions on your notes using your reference sheet as a guide.
sulfate
carbonate
permanganate
sulfite
hydroxide
nitrate

12. Steps for Naming Ionic Compounds
CaBr2
calcium
bromide
Step 1: Write the name of the metal ion.
Step 2: Write the name of the nonmetal ion.
Step 3: YOU ARE DONE! It is that easy.

13. Group Practice problems

14. 1. NaF
2. MgO
sodium
fluoride
magnesium
oxide
3. SrCl2
4. Li2S
strontium
chloride
lithium
sulfide
5. CaO
6. KI
calcium
oxide
potassium
iodide

15. When polyatomic ions are used, simply use the name of the polyatomic ion in the compound.
1. NH4F
2. CaSO4
ammonium
fluoride
calcium
sulfate
3. Mg(NO3)2
4. NaOH
magnesium
nitrate
sodium
hydroxide

16. Name the ionic compounds that are found on your notes.
calcium chloride
potassium sulfide
potassium permanganate
barium oxide
ammonium chloride
cesium chloride
magnesium sulfate
sodium bromide
aluminum phosphide

17. Textbook practice problems:
Pg. 187 – do every other letter Pg