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Element Symbols & Names Cations
+
H hydrogen H hydrogen ion
+
Li lithium Li lithium ion
Na sodium (natrium) Na+ sodium ion
+
K potassium (kalium) K potassium ion
Rb rubidium Rb+ rubidium ion
Cs cesium Cs+ cesium ion
Be beryllium Be2+ beryllium ion
2+
Mg magnesium Mg magnesium ion
Ca calcium Ca2+ calcium ion
Sr strontium Sr2+ strontium ion
Ba barium Ba2+ barium ion
Al aluminum Al3+ aluminum ion
+
Ag silver (argentum) Ag silver ion
Zn zinc Zn2+ zinc ion
Cd cadmium Cd2+ cadmium ion
Sc scandium Sc3+ scandium ion
Ga gallium Ga3+ gallium ion
Stock System Latin System
Ti titanium Ti3+ titanium(III) ion titanous ion
Ti4+ titanium(IV) ion titanic ion
3+
V vanadium V vanadium(III) ion vanadous ion
5+
V vanadium(V) ion vanadic ion
Cr chromium Cr2+ chromium(II) ion chromous ion
Cr3+ chromium(III) ion chromic ion
2+
Mn manganese Mn manganese(II) ion manganous ion
3+
Mn manganese(III) manganic ion
Fe iron (ferrum) Fe2+ iron(II) ion ferrous ion
Fe3+ iron(III) ion ferric ion
Co cobalt Co2+ cobalt(II) ion cobaltous ion
Co3+ cobalt(III) ion cobaltic ion
Ni nickel Ni2+ nickel(II) ion nickelous ion
Ni3+ nickel(III) ion nickelic ion
Cu copper (cuprum) Cu+ copper(I) ion cuprous ion
Cu2+ copper(II) ion cupric ion
Au gold (aurum) Au+ gold(I) ion aurous ion
Au3+ gold(III) ion auric ion
Hg mercury (hydrargyrum) Hg 2+ mercury(I) ion mercurous ion
2
2+
Hg mercury(II) ion mercuric ion
Sn tin (stannum) Sn2+ tin(II) ion stannous ion
Sn4+ tin(IV) ion stannic ion
Pb lead (plumbum) Pb2+ lead(II) ion plumbous ion
Pb4+ lead(IV) ion plumbic ion
Sb antimony (stibium) Sb3+ antimony(III) ion antimonous ion
Sb5+ antimony(V) ion antimonic ion
Bi bismuth Bi3+ bismuth(III) ion bismuthous ion
Bi5+ bismuth(V) ion bismuthic ion
NH+ ammonium ion
4
Element Symbols & Names Anions Acids
H hydrogen H ¯ hydride ion
F fluorine F ¯ fluoride ion HF(aq) hydrofluoric acid
Cl chlorine Cl¯ chloride ion HCl(aq) hydrochloric acid
Br bromine Br ¯ bromide ion HBr(aq) hydrobromic acid
I iodine I ¯ iodide ion HI(aq) hydroiodic acid
2-
O oxygen O oxide ion
2-
S sulfur S sulfide ion HS(aq) hydrosulfuric acid
3- 2
N nitrogen N nitride ion
3-
P phosphorus P phosphide ion
Polyatomic Anions
CN ¯ cyanide ion HCN(aq) hydrocyanic acid
OH ¯ hydroxide ion
O2- peroxide ion
2
NO¯ nitrite ion HNO(aq) nitrous acid
2 2
NO¯ nitrate ion HNO(aq) nitric acid
3 3
CO2- carbonate ion HCO¯ hydrogen carbonate ion HCO(aq) carbonic acid
3 3 2 3
SO2- sulfite ion HSO¯ hydrogen sulfite ion HSO(aq) sulfurous acid
32- 3 2 3
SO sulfate ion HSO¯ hydrogen sulfate ion HSO(aq) sulfuric acid
4 4 2 4
PO3- phosphite ion HPO2- hydrogen phosphite ion
3 3
HPO¯ dihydrogen phosphite ion HPO(aq) phosphorous acid
2 3 3 3
PO3- phosphate ion HPO2- hydrogen phosphate ion
4 4
HPO¯ dihydrogen phosphate ion HPO(aq) phosphoric acid
2 4 3 4
ClO¯ hypochlorite ion HClO(aq) hypochlorous acid
ClO ¯ chlorite ion HClO (aq) chlorous acid
2 2
ClO ¯ chlorate ion HClO (aq) chloric acid
3 3
ClO ¯ perchlorate ion HClO (aq) perchloric acid
4 4
BrO¯ hypobromite ion HBrO(aq) hypobromous acid
BrO ¯ bromite ion HBrO (aq) bromous acid
2 2
BrO ¯ bromate ion HBrO (aq) bromic acid
3 3
BrO ¯ perbromate ion HBrO (aq) perbromic acid
4 4
IO¯ hypoiodite ion HIO(aq) hypoiodous acid
IO ¯ iodite ion HIO (aq) iodous acid
2 2
IO ¯ iodate ion HIO (aq) iodic acid
3 3
IO ¯ periodate ion HIO (aq) periodic acid
4 4
MnO¯ permanganate ion HMnO(aq) permanganic acid
4 4
CrO 2- chromate ion HCrO(aq) chromic acid
4 2- 2 4
Cr O dichromate ion HCrO(aq) dichromic acid
2 7 2 2 7
HCO¯ formate ion HCOH formic acid
2 2
CHO¯ acetate ion HCHO(aq) acetic acid
2 3 2 2 3 2
Prefixes for
Molecular Compounds & Hydrates
1 mono
2 di
3 tri
4 tetra
5 penta
6 hexa
7 hepta
8 octa
9 nona
10 deca
Prefixes for
Organic Compounds Alkanes Alkenes Alkynes
1 meth CH methane
4
2 eth CH ethane CH ethene CH ethyne
2 6 2 4 2 2
3 prop CH propane CH propene CH propyne
3 8 3 6 3 4
4 but CH butane CH butene CH butyne
4 10 4 8 4 6
5 pent CH pentane CH pentene CH pentyne
5 12 5 10 5 8
6 hex CH hexane CH hexene CH hexyne
6 14 6 12 6 10
7 hept CH heptane CH heptene CH heptyne
7 16 7 14 7 12
8 oct CH octane CH octene CH octyne
8 18 8 16 8 14
9 non CH nonane CH nonene CH nonyne
9 20 9 18 9 16
10 dec C H decane C H decene C H decyne
10 22 10 20 10 18
Alcohols Amines Carboxylic Acids
CHOH methanol CHNH methylamine HCOH methanoic acid
3 3 2 2
CHOH ethanol CHNH ethylamine CHCOH ethanoic acid
2 5 2 5 2 3 2
CHOH propanol CHNH propylamine CHCOH propanoic acid
3 7 3 7 2 2 5 2
CHOH butanol CHNH butylamine CHCOH butanoic acid
4 9 4 9 2 3 7 2
CH OH pentanol CH NH pentylamine CHCOH pentanoic acid
5 11 5 11 2 4 9 2
CH OH hexanol CH NH hexylamine CH COH hexanoic acid
6 13 6 13 2 5 11 2
CH OH heptanol CH NH heptylamine CH COH heptanoic acid
7 15 7 15 2 6 13 2
CH OH octanol CH NH octylamine CH COH octanoic acid
8 17 8 17 2 7 15 2
CH OH nonanol CH NH nonylamine CH COH nonanoic acid
9 19 9 19 2 8 17 2
C H OH decanol C H NH decylamine CH COH decanoic acid
10 21 10 21 2 9 19 2
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