Common Polyatomic Ions

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Ammonium

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Ordered according to charge and ion family * means you do not need to memorize them.

49 Terms

1

Ammonium

NH4(+)

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2

Hydronium

H3O(+)

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3

Mercury (I)

Hg2(2+)

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4

Dihydrogen Phosphite

H2PO3(-)

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5

Dihydrogen Phosphate

H2PO4(-)

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6

Hydrogen Carbonate (Bicarbonate)

HCO3(-)

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7

Hydrogen Sulfite

HSO3(-)

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8

Hydrogen Sulfate

HSO4(-)

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9

Nitrite

NO2(-)

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10

Nitrate

NO3(-)

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11

Hydroxide

OH(-)

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12

Acetate**

CH3COO(-), CH2CO2(-), C2H3O2(-)

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13

Chromite*

CrO2(-)

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14

Cyanide

CN(-)

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15

Cyanate

CNO(-)

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16

Thiocyanate

CNS(-)

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17

Superoxide*

O2(-)

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18

Permanganate

MnO4(-)

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19

Hypochlorite

ClO(-)

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20

Chlorite

ClO2(-)

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21

Chlorate

ClO3(-)

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22

Perchlorate

ClO4(-)

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23

Hypobromite

BrO(-)

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24

Bromite

BrO2(-)

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25

Bromate

BrO3(-)

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26

Perbromate

BrO4(-)

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27

Hypoiodite

IO(-)

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28

Iodite

IO2(-)

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29

Iodate

IO3(-)

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30

Periodate

IO4(-)

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31

Hydrogen Phosphite

HPO3(2-)

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32

Hydrogen Phosphate

HPO4(2-)

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33

Carbonate

CO3(2-)

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34

Sulfite

SO3(2-)

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35

Sulfate

SO4(2-)

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36

Thiosulfate

S2O3(2-)

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37

Silicate

SiO3(2-)

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38

Carbide*

C2(2-)

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39

Oxalate

C2O4(2-)

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40

Chromate

CrO4(2-)

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41

Dichromate

Cr2O7(2-)

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42

Tartrate

C4H4O6(2-)

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43

Molybdate

MoO4(2-)

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44

Peroxide

O2(2-)

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45

Disulfide*

S2(2-)

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46

Phosphite

PO3(3-)

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47

Phosphate

PO4(3-)

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48

Arsenite

AsO3(3-)

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49

Arsenate

AsO4(3-)

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