Ammonium
NH₄⁺
Acetate
C₂H₃O₂⁻
Carbonate
CO₃²⁻
Bicarbonate (hydrogen carbonate)
HCO₃⁻
Chromate
CrO₄²⁻
Dichromate
Cr₂O₇²⁻
Cyanide
CN⁻
Hydroxide
OH⁻
Nitrate
NO₃⁻
Nitrite
NO₂⁻
Permanganate
MnO₄⁻
Phosphate
PO₄³⁻
Hydronium
H₃O⁺
Sulfate
SO₄²⁻
Sulfite
SO₃²⁻
Hypochlorite
ClO⁻
Chlorite
ClO₂⁻
Chlorate
ClO₃⁻
Perchlorate
ClO₄⁻
Bromate
BrO₃⁻
Hydrogen Sulfite (Bisulfite)
HSO₃⁻
Ammonia
NH₃
Arsenate
AsO₄³⁻
Arsenite
AsO₃³⁻
Iodate
IO₃⁻
Oxalate
C₂O₄²⁻
Acetate (2nd version)
CH3COO⁻
Phosphite
PO₃³⁻
Hydrogen Phosphate
HPO₄²⁻
Peroxide
O₂²⁻
Dihydrogen phosphate
H₂PO₄⁻
Hydrogen Sulfate (bisulfate)
HSO₄⁻
X O₄⁻¹
per- -ate
X O₃¹⁻
-ate
X O₂¹⁻
-ite
X O¹⁻
hypo- -ite
Hg₂²⁺
Mercury (I)
Hg²⁺
Mercury (II)
cyanate
OCN⁻
thiocyanate
SCN⁻
hydride
H⁻
hypobromite
BrO⁻
bromite
BrO₂⁻
perbromate
BrO₄⁻
hypoiodite
IO⁻
iodite
IO₂⁻
periodate
IO₄⁻
Metal + Nonmetal
metal written first (cation) + nonmetal (anion)
where anion has -ide suffix
metal written first (cation) + nonmetal (anion)
where anion has -ide suffix
charge should be indicated on metals with variable charge (transition metals; exceptions: Zn²⁺, Cd²⁺, Ag⁺, Al³⁺)
Rules for naming binary ionic compounds
cations: element name + “ion”
anions: element name w/ “-ide” ending
anions: element name w/ “-ide” ending
if atom is transition element make sure to denote variable charge w/ roman numeral when applicable (transition metals; exceptions: Zn²⁺, Cd²⁺, Ag⁺, Al³⁺)
naming monatomic cations/anions
cation written first (either the metal name or polyatomic ion name) + anion (either the nonmetal with -ide suffix or the polyatomic ion name)
reflect electroneutrality and variable charges when necessary
Rules for naming polyatomic ionic compounds
name the ionic compound + greek numerical prefix- + “-hydrate”
Rules for naming Hydrated Ionic compounds
anion + -ic acid
If anion ends in -ate what is the form for the acid?
anion + -ous acid
If anion ends in -ite what is the form for the acid?
hydro + anion + -ic acid
If anion ends in -ide what is the form for the acid?
H+ cation with an anion in (aq) form where anion dictates acid name
what is the form for an acid?
nonmetal + nonmetal
more electropositive element goes first
more electronegative goes last with -ide ending
number of elements is indicated with greek prefixes except for the case of the first element being singular
more electropositive element goes first
more electronegative goes last with -ide ending
number of elements is indicated with greek prefixes except for the case of the first element being singular
Rules for naming covalent compounds
mono
di
tri
tetra
penta
hexa
hepta
octa
nona
deca
di
tri
tetra
penta
hexa
hepta
octa
nona
deca
greek prefixes
