Unit 2: Chemical Nomenclature Section 1: Binary Compounds

Nomenclature Chemical naming system Chemical naming system – Two types of naming groups Ionic Compounds Ionic Compounds Covalent (Molecular) Compounds Covalent (Molecular) Compounds

Ionic Compounds Bond formed between a positive and a negative ion Bond formed between a positive and a negative ion – Three types of ionic compounds binary compounds binary compounds compounds of polyatomic ions compounds of polyatomic ions compounds of stock system ions compounds of stock system ions

Binary Compounds Formed with only two elements Formed with only two elements – A positive ion and a negative ion

Naming Binary Compounds Write the name of the 1 st element Write the name of the 1 st element Add part of the name of the 2 nd element Add part of the name of the 2 nd element End the 2 nd name with “ide” End the 2 nd name with “ide” – Example: NaCl Sodium and Chlorine Sodium and Chlorine Sodium Chloride Sodium Chloride

Common Negative Ions H- Hydrogen  Hydride H- Hydrogen  Hydride F- Fluorine  Fluoride F- Fluorine  Fluoride Cl- Chlorine  Chloride Cl- Chlorine  Chloride Br- Bromine  Bromide Br- Bromine  Bromide O 2 - Oxygen  Oxide O 2 - Oxygen  Oxide S 2 - Sulfur  Sulfide S 2 - Sulfur  Sulfide N 3 - Nitrogen  Nitride N 3 - Nitrogen  Nitride

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