Common Ions and Their Names

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A complete set of vocabulary flashcards for common monatomic and polyatomic cations and anions based on the provided chemistry lecture notes.

Last updated 3:42 AM on 8/13/26
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58 Terms

1
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H+H^+

Hydrogen cation

2
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Li+Li^+

Lithium cation

3
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Na+Na^+

Sodium cation

4
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K+K^+

Potassium cation

5
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Rb+Rb^+

Rubidium cation

6
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Cs+Cs^+

Cesium cation

7
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Ag+Ag^+

Silver cation

8
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NH4+NH_4^+

Ammonium (Polyatomic Cation)

9
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H3O+H_3O^+

Hydronium (Polyatomic Cation)

10
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Mg^{2+

Magnesium cation

11
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Ca2+Ca^{2+}

Calcium cation

12
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Sr2+Sr^{2+}

Strontium cation

13
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Ba2+Ba^{2+}

Barium cation

14
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Zn2+Zn^{2+}

Zinc cation

15
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Cd2+Cd^{2+}

Cadmium cation

16
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Al3+Al^{3+}

Aluminum cation

17
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Bi3+Bi^{3+}

Bismuth cation

18
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H−H^-

Hydride anion

19
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F−F^-

Fluoride anion

20
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Cl−Cl^-

Chloride anion

21
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Br−Br^-

Bromide anion

22
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I−I^-

Iodine anion

23
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O2−O^{2-}

Oxide anion

24
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S2−S^{2-}

Sulfide anion

25
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N3−N^{3-}

Nitride anion

26
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P3−P^{3-}

Phosphide anion

27
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C4−C^{4-} (C22−C_2^{2-})

Carbide anion

28
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OH−OH^-

Hydroxide (Polyatomic Anion)

29
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CN−CN^-

Cyanide (Polyatomic Anion)

30
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O22−O_2^{2-}

Peroxide (Polyatomic Anion)

31
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CO32−CO_3^{2-}

Carbonate (Polyatomic Anion)

32
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C2O42−C_2O_4^{2-}

Oxalate (Polyatomic Anion)

33
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NO2−NO_2^-

Nitrite (Polyatomic Anion)

34
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NO3−NO_3^-

Nitrate (Polyatomic Anion)

35
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PO33−PO_3^{3-}

Phosphite (Polyatomic Anion)

36
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PO43−PO_4^{3-}

Phosphate (Polyatomic Anion)

37
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SO32−SO_3^{2-}

Sulfite (Polyatomic Anion)

38
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SO42−SO_4^{2-}

Sulfate (Polyatomic Anion)

39
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S2O32−S_2O_3^{2-}

Thiosulfate (Polyatomic Anion)

40
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ClO−ClO^-

Hypochlorite (Polyatomic Anion)

41
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ClO2−ClO_2^-

Chlorite (Polyatomic Anion)

42
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ClO3−ClO_3^-

Chlorate (Polyatomic Anion)

43
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ClO4−ClO_4^-

Perchlorate (Polyatomic Anion)

44
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CH3COO−CH_3COO^- (or C2H3O2−C_2H_3O_2^-)

Acetate (Polyatomic Anion)

45
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AsO43−AsO_4^{3-}

Arsenate (Polyatomic Anion)

46
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BO33−BO_3^{3-}

Borate (Polyatomic Anion)

47
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SiO32−SiO_3^{2-}

Silicate (Polyatomic Anion)

48
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MnO4−MnO_4^-

Permanganate (Polyatomic Anion)

49
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CrO42−CrO_4^{2-}

Chromate (Polyatomic Anion)

50
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Cr2O72−Cr_2O_7^{2-}

Dichromate (Polyatomic Anion)

51
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CHO2−CHO_2^-

Formate (Polyatomic Anion)

52
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HCO3−HCO_3^-

Hydrogen carbonate or bicarbonate (Polyatomic Anion)

53
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HSO3−HSO_3^-

Hydrogen sulfite or bisulfite (Polyatomic Anion)

54
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HSO4−HSO_4^-

Hydrogen sulfate or bisulfate (Polyatomic Anion)

55
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HPO42−HPO_4^{2-}

Hydrogen phosphate (Polyatomic Anion)

56
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H2PO4−H_2PO_4^-

Dihydrogen phosphate (Polyatomic Anion)

57
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BrO31−BrO_3^{1-}

Bromate (Polyatomic Anion)

58
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IO31−IO_3^{1-}

Iodate (Polyatomic Anion)