Ionic Type I (Monovalent) ☇ binary ; metal + non-metal ; “one charge”

• charge on metal DOES NOT change

• metal will be from groups 1 or 2, or be Ar, Zn, or Al

• prefixes are NOT used, and metal (cation) is written first

• oxidation # charges MUST cancel

• steps :

  • 1. name the metal

  • 2. take the root from the non-metal

  • 3. add suffix “-ide”

    • ** NO ROMAN NUMERALS !!

Ionic Type II (Multivalent) ☇ binary ; metal + non-metal ; various possible charges

• charge on metal DOES change

• metals are transition (d-block) or post-transition (heavy p-block)

• prefixes are NOT used, and metal (cation) is written first

• oxidation # charges MUST cancel

• steps :

  • 1. name the metal

  • 2. take root from the non-metal

  • 3. add suffixe “-ide”

    • **ROMAN NUMERALS IN NAME, NOT FORMULA, TO INDICATE CHARGE OF METAL CATION !!

Covalent Type III ☇ binary ; non-metal + non-metal ; suffix “-ide”

• use prefixes to indicate # of atoms from formula ⇿ name

• prefixes :

  • 1 🢭 “mono-”

  • 2 🢭 “di-”

  • 3 🢭 “tri-”

  • 4 🢭 “tetra-”

  • 5 🢭 “penta-”

  • 6 🢭 “hexa-”

  • 7 🢭 “hepta-”

  • 8 🢭 “octa-”

  • 9 🢭 “nona-”

  • 10 🢭 “deca-”

Polyatomics

• Ionic Type I and Ionic Type II, so follows the same nomenclature rules

• often does not end with “-ide” because they are NOT binary (except cyanide). instead, either ends with “-ate” (“more”) or “-ite” (“fewer”)

• often contains at least one oxygen atom