CHEM 2070 - Common Cations, Anions, and Polyatomic Ions

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Last updated 4:30 AM on 9/3/26
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32 Terms

1
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H+

Hydrogen Ion

2
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Na+

Sodium Ion

3
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K+

Potassium Ion

4
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Ag+

Silver Ion

5
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Mg²+

Magnesium Ion

6
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Ca²+

Calcium Ion

7
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Zn²+

Zinc Ion

8
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Al³+

Aluminum Ion

9
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10
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Cu²+

Copper (II)

11
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Fe²+

Iron (II)

12
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Pb²+

Lead (II)

13
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Fe³+

Iron (III)

14
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F-

Flouride Ion

15
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Cl-

Chloride Ion

16
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Br-

Bromide Ion

17
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I-

Iodine Ion

18
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OH-

Hydroxide Ion

19
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O²-

Oxide Ion

20
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S²-

Sulfide Ion

21
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CH3COO- (or C2H3O2-)

Acetate Ion

22
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ClO4-

Perchlorate Ion

23
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NO3-

Nitrate Ion

24
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MnO4-

Permanganate Ion

25
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CO3²-

Carbonate Ion

26
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CrO4²-

Chromate Ion

27
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Cr2O7²-

Dichromate Ion

28
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SO4²-

Sulfate Ion

29
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SO3²-

Sulfite Ion

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NH4+

Ammonium Ion

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PO4³-

Phosphate Ion

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Prefixes Used in Naming Binary Compounds Formed between Nonmetals


Number

Prefix

1

mono-

2

di-

3

tri-

4

tetra-

5

penta-

6

hexa-

7

hepta-

8

octa-

9

nona-

10

deca-


Ex:

CO → carbon monoxide

CO₂ → carbon dioxide

N₂O₅ → dinitrogen pentoxide

PCl₃ → phosphorus trichloride

These are different from polyatomic ions (molecules which form ions rather than atoms)