Polyatomic Ions Flashcards

1
Q

What are polyatomic ions?

A

An ion made up of two or more atoms covalently bonded and act as a single unit.

They can have either a negative or positive charge.

They cannot be neutral.

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2
Q

What are the suffix’s for poly atomic ions that contain oxygen?

A

Ite/Ate.

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3
Q

What does the -ate suffix mean?

A

one more oxygen atom.

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4
Q

What does the -ite suffix mean?

A

one less oxygen atom.

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5
Q

What does the -ide suffix mean?

A

usually it means there is no oxygen atom in the ion.

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6
Q

Order from none to most oxygen

A

-Ide, Hypo-ite, -ite, -ate, Per-ate.

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7
Q

NO3

A

Nitrate (-)

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8
Q

NO2

A

Nitrite (-)

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9
Q

N-3

A

Nitride

Don’t forget the negative three charge.

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10
Q

SO4

A

Sulfate (-2)

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11
Q

SO3

A

Sulfite (-2)

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12
Q

S-2

A

Sulfide

Don’t forget the -2 charge.

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13
Q

PO4

A

Phosphate (-3)

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14
Q

PO3

A

Phosphite (-3)

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15
Q

P-3

A

Phosphide.

Don’t forget -3 charge.

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16
Q

ClO4

A

Perchlorate (-)

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17
Q

ClO3

A

Chlorate (-)

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18
Q

ClO2

A

Chlorite (-)

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19
Q

ClO1

A

Hypochlorite (-)

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20
Q

Cl-

A

Chloride

Don’t forget -1 charge.

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21
Q

BrO4

A

Perbromate (-)

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22
Q

BrO3

A

Bromate (-)

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23
Q

BrO2

A

Bromite (-)

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24
Q

BrO

A

Hypobromite (-)

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25
Br-
Bromide
26
IO4
Periodate (-)
27
IO3
Iodate (-)
28
IO2
Iodite (-)
29
IO
Hypoidite (-)
30
I-
Iodide | Don't forget -1 charge.
31
CO3
Carbonate (-2)
32
HCO3
Bicarbonate or Hydrogen carbonate (-)
33
HSO4
Bisulfate or Hydrogen sulfate. (-)
34
HSO3
Bisulfite or Hydrogen Sulfite (-)
35
HPO4
Biphosphate or hydrogen phosphate (-2)
36
H2PO4
Dihydrogen Phosphate (-)
37
What happens when a hydrogen is added to a polyatomic atom.
The charge is reduced since hydrgen forms a +1 charge.
38
HPO3
hydrogren phosphite (-2)
39
H2PO3
Dihydrogen Phosphite.
40
OH
Hydroxide (-)
41
NH4
Ammonium (+)
41
NH3
Ammonia
42
C2H3O2
Acetate (-)
43
C2O4
Oxalate (-2)
44
CrO4
Chromate (-2)
45
Cr2O7
Dichromate (-2)
46
S2
Disulfate (-2)
47
S2O3
Thiosulfate (-2)
48
What does the prefix Thio mean?
Thio means the Oxygen in a polyatomic ion has been replaced by a sulfur | Ex: SO4 (Sulfate)--> S2O3 (Thiosulfate)
49
MnO4
Permanganate (-)
50
CN
Cyanide (-)
51
SCN
Thiocyanate (-)
52
O-2
Oxide
53
O2-2
Peroxide
54
O2-1
Superoxide
55
N3-
Azide
56
N-3
Nitride
57
BO3
Borate (-3)
58
H3O
Hydronium (+)
59