Rules For Naming Compounds Flashcards
Monatomic Metal Cations
keep the same name as the element
K(+)
Potassium Ion
Na(+)
Sodium Ion
Al(3+)
Aluminum Ion
Fe(2+)
Iron (II) Ion
Fe(3+)
Iron (III) Ion
Monatomic Anions
replace the ending of the element name with “-ide”
H(-)
Hydride Ion
Cl(-)
Chloride Ion
N(3-)
Nitride Ion
Polyatomic Nonmetal Cations
names that end in “-ium”
NH(4+)
Ammonium Ion
H3O(+)
Hydronium Ion
Polyatomic Anions
end with “-ide”
OH(-)
Hydroxide Ion
CN(-)
Cyanide Ion
Oxyanions (anions that contain oxygen)
mostly end in “-ate”, “-ite” if there is one less oxygen atom
SO4(2-)
Sulfate Ion
SO3(2-)
Sulfite Ion
Cations Containing Oxygen and Hydrogen
add the word “hydrogen” or “dihydrogen” at the beginning
HCO3(-)
Hydrogen Carbonate Ion
H2PO4(-)
Dihydrogen Phosphate Ion
Binary Acids
a) start with the prefix “hydro-“
b) add the name of the monatomic ion
c) change the end to “-ic”
d) add the word “acid”
