Here are some tools to help get you ready for naming on the upcoming exam!
*On WebCT in the lecture notes there is a list of approximately 10 ions to memorize, and
this will also help you with naming!
Rules
Ions
Cations(+)
Same name as metal.
Ex. Al3+ is an Aluminum ion.
Note: If the metal can take on different charges you need to specify with roman numerals.
Common examples
Copper(I) Iron(II) Lead(II) Tin(II)
Copper(II) Iron(III) Lead(IV) Tin (IV)
Anions(-)
Replace the ending of the ion with –ide
Ex. Cl- is a Chloride ion.
When a compound has oxygen the ending also changes.
Ex.
ClO4- Perchlorate ion
ClO3- Clorate ion
ClO2- Chlorite ion
ClO- Hypochlorite ion
*Notice how the ending changes when you add or take away an oxygen.
If you add a H+ you have to add hydrogen in from of the name.
Ex. HCO3^- is hydrogen carbonate ion
Ionic Compounds
To name an ionic compound just take the name of the cation with the name of the anion.
Ex.CaCl2 is Calcium chloride
Acids
-ide goes to –ic
-Add hydro- as a prefix
-Add the word acid after it.
Ex. Cl- is HCl Hydrochloric acid
Look as the ending to get the proper name of an acid.
-ate or –ide goes to –ic and add the word acid behind.
Ex. HClO3 is Chloric acid.
-ite goes to –ous and add the word acid behind.
Ex. HClO2 is Cholorous acid
