1. Starts with Metal 1) Write the name of the 1st element 2) Write the name of the 2nd element, change the ending to -ide 2) Write the name of the polyatomic ion Do reverse criss-cross to determine charge, use a Roman numeral after the cation Starts with Non-Metal 1st element- Change subscript into prefix then write element 2nd element- change subscript into prefix, write element, change ending to -ide Starts with H yes Compound is IONIC Compound is COVALENT If 1st element is a transition metal if anion is an ELEMENT if anion is a POLYATOMIC ION yes Compound is an ACID Is OXYGEN present? yes no Hydro + root + -ic acid If polyatomic ion ends in -ite: Root + -ous Acid If polyatomic ion ends in -ate: Root + -ic Acid Don’t use mono on 1st element NO POLYATOMICS IN COVALENT FORMULAS yes Formula to Name XY Xray Yellow Pre-fixes mono-1 di-2 tri-3 tetra-4 penta-5 hexa-6 hepta-7 octa-8 nona-9 deca-10

2. Does name have a prefix or start with a non-metal? Write elements Change prefixes into subscripts DO NOT REDUCE DO NOT CRISS-CROSS Is compound an Acid? Does name start with hydro-? Write symbol and charge for H and element Do Criss-cross Is 1st element a metal? yes Compound is COVALENT Compound is an ACID yes Compound is IONIC yes If root ends in -ous: use -ite polyatomic ion If root ends in -ic: use -ate polyatomic ion yes no Name to Formula Xray Yellow XY Pre-fixes mono-1 di-2 tri-3 tetra-4 penta-5 yes Write symbol and charge for H and polyatomic ion Do Criss-cross Is there a Roman numeral? Roman numeral tells you the charge Write symbol and charge for cation and anion Do criss-cross -ide = element -ite -ate = polyatomic ion hexa-6 hepta-7 octa-8 nona-9 deca-10