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Chapter 5. Nomenclature. Naming M etal + Non Metal Compounds. Forms a binary ionic compound Made up of a cation (+ charge) and an anion(-charge) Two types of compound Some metals form only one type of cation
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Chapter 5 Nomenclature
Naming Metal + Non Metal Compounds • Forms a binary ionic compound • Made up of a cation(+ charge) and an anion(-charge) • Two types of compound • Some metals form only one type of cation • Other metals can form two or more cations that have different charges…We use a roman numeral after the cation name to indicate the charge.
continued • Always name the cation first and the anion last • Then take the name of the cation • Then take the first part of the anion name and add –ideto it
Naming Compounds with Polyatomic Ions • First use the name of the cation • Then add the name of the anion
Writing Formulas From Names • Some metals have two charges • When a metal has more than one charge, you need to represent that charge in the name • Use a roman numeral( ex II) next to the metal to show the charge • You need to know the name of elements and Polyatomic ions