Multivalent Metals

Multivalent Metals Multivalent metals have more than one ion charge listed on the periodic table.

Naming Ionic Compounds with Multivalent Metals When naming ionic compounds that contain a multivalent metal, you need to designate which ion it is by including a roman numeral after the metal to indicate the charge Roman numeral: +1 – I +2 – II +3 – III +4 – IV +5 – V For example, copper can form ions with a +1 or +2 charge. Cu1+ = copper (I) (pronounced “copper one”) Cu2+ = copper (II) (pronounced “copper two”)

Name Cu3N

Practice Name the following: SnS2 Fe2O3 FeF3 Cr3P2 Hg2O

Writing Chemical Formula for Ionic Compounds with Multivalent Metals Similar to the steps of Binary Ionic Compounds The charge of the metal is the roman numeral Example: Iron (II) chloride

Practice Determine the chemical formula for the following chemical: Copper (I) fluoride Lead (II) bromide Nickel (III) selenide Tin (II) oxide Chromium (VI) oxide