Naming Ionic Compounds – questions to ask Polyatomic Ions Page 202.

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Polyatomic ions & Naming ionic Compounds

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Presentation transcript:

Naming Ionic Compounds – questions to ask

Polyatomic Ions Page 202

What are they? An ion consisting of a stable group of atoms acting together as a single charged particle Most are anions; exception is the ammonium cation Do not form binary compounds See table 1 page 202 for common polyatomic ions

How are they named? Cation is named first Polyatomic ion named as a unit, not individual atoms Check to see if metal is polyvalent when naming

Practice What is the name of the compound Na2CO3? Sodium Carbonate

Practice What is the name of the compound Fe(NO3)3? Iron (III) nitrate

Practice What is the name of the compound CuSO4? Copper (II) sulfate

Practice What is the name of the compound Ca(OH) 2? Calcium hydroxide

Practice What is the chemical formula of sodium phosphate? (use the criss-cross method) Na PO4 Na3PO4

Practice What is the chemical formula for copper (II) nitrate? Cu(NO3)2

Practice What is the chemical formula for Ammonium carbonate? (NH4)2CO3

(uranium)(selenium) (yttrium)(erbium) (boron)(radium)(iodine)(nitrogen) Worksheet – Nomenclature Page 205 # 1 - 11