Chapter 5: Nomenclature Rules or I Love It When a Plan Comes Together I. Types of Compounds A. Molecular B. Ionic II. Naming Ionic Compounds A. Binary Ionic Compounds B. Compounds in Water C. Ionic Compounds with Polyatomic Anions and Cations III. Naming Molecular Compounds IV. Naming Acids A. Binary Acids B. Acids from Oxyanions V. Writing Formulas from Names
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Chapter 5: Nomenclature Rules or
I Love It When a Plan
Comes Together
I. Types of Compounds
A. Molecular
B. Ionic
II. Naming Ionic Compounds
A. Binary Ionic Compounds
B. Compounds in Water
C. Ionic Compounds with
Polyatomic Anions and
Cations
III. Naming Molecular Compounds
IV. Naming Acids
A. Binary Acids
B. Acids from Oxyanions
V. Writing Formulas from Names
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I. Types of Compounds
A) Molecular Compounds
Covalent Bonds - sharing of electrons
between elements
non-metal - non-metal
B) Ionic Compounds
Ionic Bonds - transfer of electrons
between elements
metal - non-metal
Chemistry is
the BOMB!
2,3,7,8-tetrachlorodibenzo-p-dioxin
potassium cyanide dihydrogen monoxide
Organic – mostly C, H, and a small amount of
other elements, generally with a C-
backbone
Inorganic – all others without the C-
backbone
H2O
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II. Naming Ionic Compounds
A) Binary Ionic Compounds
Types of Binary Ionic Compounds Type 1 - contain metals that form only one ion of
specific charge
Type 2 - contain metals that can form ions with
different charges
Type 1
- most main group elements plus Ag, Zn, Cd, Ni
Type 2
- most transition metals and inner transition metals plus
Ga, In,Tl, Sn, Pb, Bi, Po*
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Rules for Naming Binary Ionic Compounds
1. Cation Anion
2. Name of Cation =Type 1 - name of neutral metal
=Tpye 2 - name of neutral
metal (R.N.)
Cmpd Cation Anion Cation Name
3. Name of Anion = root name of neutral element with
-ide ending
Cmpd Cation Anion Anion Name
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C.) Ionic Compounds with Polyatomic
Anions and Cations
Polyatomic Ion ion composed of
multiple atoms
Examples
Exception to Rule Rule Molecular Compd. – no metals