naming ionic compounds: salts chapter 7 part 1. metal ions are always positive positive ions are...
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Naming Ionic Compounds: SaltsChapter 7 part 1
Metal Ions are always positive• Positive ions are Cations and go first!!• If they are from the Representative Groups, their charge is known.• How is their charge known?• Look at Periodic Table!!• Take the name as it appears on the Periodic Table
Transitional Metals have more than one charge.
• Two forms of Nomenclature:
• Classical (Greek roots)• Contemporary (Charge in
Roman Numerals)
Polyatomic Cations
• Check your sheet.• Which polyatomic ions
are cations?
• NH4+
Anions: Nonmetals
• Remove ending and add -ide
• Take root name from periodic table.
• -ite has less O’s
Anions: Polyatomic• Name as it appears in the table.
• Ending depends on # of oxygen atoms in ion.
• -ate has more O’s
Neutralize your Salt!!
• You must make the sum of your negative ions equal the sum of your positive ions.
• Criss-Cross
Worksheet
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