Meaning of Suffixes
Suffixes have meaning“-ide” binary compound
sodium chloride (NaCl)
“-ite” or “-ate” polyatomic compoundsulfite (SO3
2-)
sulfate (SO42-) “-ate” means one more
oxygen than “-ite”
“-ol” alcoholmethyl alcohol (methanol)
“-ose” sugarsucrose
“-ase” enzymesucrase
Prefixes – Binary Molecular CompoundsGreek Prefixes for Two Nonmetals
Number Indicated Prefixes
1 mono 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta 8 octa 9 nona10 deca
Binary Molecular Compounds
N2O dinitrogen monoxideN2O3 dinitrogen trioxideN2O5 dinitrogen pentoxide
ICl iodine monochlorideICl3 iodine trichloride
SO2 sulfur dioxideSO3 sulfur trioxide
Oxidation States in Formulas and Names
dinitrogen monoxide N2O nitrogen (I) oxide
dinitrogen trioxide N2O3 nitrogen (III) oxide
dinitrogen pentoxide N2O5 nitrogen (V) oxide
sulfur dioxide SO2 sulfur (IV) oxide
sulfur trioxide SO3 sulfur (VI) oxide
Traditional System Stock System+1 -2
+3 -2
+5 -2
+4 -2
+6 -2