Introduction to naming Chemical Compounds. So Far We’ve Learned:. Compound are made from ions Formulas start with the cation and end with the anion renamed with “ide” Subscripts determine the number of atoms Polyatomic ions are ions made of many atoms and usually have parenthesis around them.
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the name of the compound MUST include
a Roman Numeral!Transition Metals
Here’s an example: There are two “iron chlorides”:
FeCl2 is iron (II) chloride
FeCl3 is iron (III) chloride
The Roman Numeral indicates the charge of the metal ion