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[[chemistry]]
**"a charged chemical species composed of two or more atoms covalently bonded or of a metal complex, that can be considered to be acting as a single unit"
|**Name**|**Formula**|
|---|---|
|**Polyatomic ions (carrying negative charge)**| |
|---|---|
|Hydroxide|OH–|
|---|---|
|Acetate|CH3COO–|
|---|---|
|Cyanide|CN–|
|---|---|
|Chlorate|ClO3–|
|---|---|
|Chlorite|ClO2–|
|---|---|
|Nitrate|NO3–|
|---|---|
|Nitrite|NO2–|
|---|---|
|Hypochlorite|OCl–|
|---|---|
|Hypobromite|OBr –|
|---|---|
|Iodate|IO3–|
|---|---|
|Bisulphite|HSO3–|
|---|---|
|Bisulphate|HSO4–|
|---|---|
|Permanganate|MnO4–|
|---|---|
|Thiocyanate|SCN–|
|---|---|
|Hydrogen carbonate|HCO3–|
|---|---|
|Carbonate|CO32-|
|---|---|
|Sulphate|SO42-|
|---|---|
|Sulphite|SO32-|
|---|---|
|Oxalate|C2O42-|
|---|---|
|Silicate|SiO32-|
|---|---|
|Manganate|MnO42-|
|---|---|
|Thiosulphate|S2O32-|
|---|---|
|Chromate|CrO42-|
|---|---|
|Dichromate|Cr2O72-|
|---|---|
|Phosphate|PO43-|
|---|---|
|Phosphite|PO33-|
|---|---|
|Aluminate|AlO33-|
|---|---|
|Arsenite|AsO33-|
|---|---|
|Arsenate|AsO43-|
|---|---|
|Borate|BO33-|
|---|---|
|Pyrophosphate|P2O74-|
|---|---|
|**Polyatomic ions (carrying positive charge)**| |
|---|---|
|Ammonium|NH4+|
|---|---|
## List of monatomic ions
- The ions made of a single atom are called **simple ions or monatomic ions**.
|**Name**|**Formula**|
|---|---|
|**Monatomic ions (carrying positive charge)**| |
|---|---|
|Hydrogen|H+|
|---|---|
|Potassium|K+|
|---|---|
|Sodium|Na+|
|---|---|
|Silver|Ag+|
|---|---|
|Cuprous|Cu+|
|---|---|
|Aurous|Au+|
|---|---|
|Barium|Ba2+|
|---|---|
|Calcium|Ca2+|
|---|---|
|Magnesium|Mg2+|
|---|---|
|Cupric|Cu2+|
|---|---|
|Ferrous|Fe2+|
|---|---|
|Stannous|Sn2+|
|---|---|
|Mercuric|Hg2+|
|---|---|
|Zinc|Zn2+|
|---|---|
|Plumbous|Pb2+|
|---|---|
|Aluminum|Al3+|
|---|---|
|Ferric|Fe3+|
|---|---|
|Auric|Au3+|
|---|---|
|Arseneous|As3+|
|---|---|
|Plumbic|Pb4+|
|---|---|
|Stannic|Sn4+|
|---|---|
|**Monatomic ions (carrying negative charge)**| |
|---|---|
|Chloride|Cl–|
|---|---|
|Bromide|Br –|
|---|---|
|Iodide|I–|
|---|---|
|Oxide|O2-|
|---|---|
|Sulphide|S2-|
|---|---|
|Nitride|N3-|
|---|---|
|Phosphide|P3-|
|---|---|