Arkansas State University Department of Chemistry and Physics

Students enrolled in Dr. Draganjac's Introduction to Chemistry (CHEM1003), General Chemistry I (CHEM1013) and General Chemistry II (CHEM1023) classes are responsible for learning the names and formulae for the common acids and common reagents and for learning the names, formulae and the charges for the common cations and anions listed below:
 

Common Cations: (ions grouped by charge)

Name	Formula	Other name(s)
Aluminum	Al+3
Ammonium	NH4+
Barium	Ba+2
Calcium	Ca+2
Chromium(II)	Cr+2	Chromous
Chromium(III)	Cr+3	Chromic
Copper(I)	Cu+	Cuprous
Copper(II)	Cu+2	Cupric
Iron(II)	Fe+2	Ferrous
Iron(III)	Fe+3	Ferric
Hydrogen	H+
Hydronium	H3O+
Lead(II)	Pb+2
Lithium	Li+
Magnesium	Mg+2
Manganese(II)	Mn+2	Manganous
Manganese(III)	Mn+3	Manganic
Mercury(I)	Hg2+2	Mercurous
Mercury(II)	Hg+2	Mercuric
Nitronium	NO2+
Potassium	K+
Silver	Ag+
Sodium	Na+
Strontium	Sr+2
Tin(II)	Sn+2	Stannous
Tin(IV)	Sn+4	Stannic
Zinc	Zn+2

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Common Anions: (ions grouped by charge)  (anions grouped by periodic position)

Simple ions:
Hydride	H-	Oxide	O2-
Fluoride	F-	Sulfide	S2-
Chloride	Cl-	Nitride	N3-
Bromide	Br-
Iodide	I-
Oxoanions:
Arsenate	AsO43-	Phosphate	PO43-
Arsenite	AsO33-	Hydrogen phosphate	HPO42-
		Dihydrogen phosphate	H2PO4-
Sulfate	SO42-	Nitrate	NO3-
Hydrogen sulfate	HSO4-	Nitrite	NO2-
Thiosulfate	S2O32-
Sulfite	SO32-
Perchlorate	ClO4-	Iodate	IO3-
Chlorate	ClO3-	Bromate	BrO3-
Chlorite	ClO2-
Hypochlorite	OCl-	Hypobromite	OBr-
Carbonate	CO32-	Chromate	CrO42-
Hydrogen carbonate or Bicarbonate	HCO3-	Dichromate	Cr2O72-
Anions from Organic Acids:
Acetate	CH3COO-	formate	HCOO-
Others:
Cyanide	CN-	Amide	NH2-
Cyanate	OCN-	Peroxide	O22-
Thiocyanate	SCN-	Oxalate	C2O42-
Hydroxide	OH-	Permanganate	MnO4-

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