Polyatomic Ions = Group of atoms that behaves like a unit, and has a charge. CO32- charge -2 1 atom 3 atoms.

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Presentation transcript:

Polyatomic Ions = Group of atoms that behaves like a unit, and has a charge. CO32- charge -2 1 atom 3 atoms

Polyatomic Ions How do they form?

CO32- carbonate

NH4+ ammonium

SO42- sulfate

SO32- sulfite

PO43- phosphate 5

PO33- phosphite

NO3- nitrate

NO2- nitrite

ClO3- chlorate 10

ClO2- chlorite

ClO4- perchlorate

ClO- hypochlorite

ClO4- perchlorate ClO3- chlorate ClO2- chlorite ClO- hypochlorite Summarizing the chlorates: ClO4- perchlorate ClO3- chlorate ClO2- chlorite ClO- hypochlorite

OH- hydroxide 15

CN- cyanide

CH3COO- or C2H3O2- acetate

HSO4- Hydrogen sulfate

HSO3- Hydrogen sulfite

MnO4- permanganate 20

Hydrogen carbonate (“bicarbonate”) HCO3- Hydrogen carbonate (“bicarbonate”)

CrO42- Chromate

Cr2O72- Dichromate

C2O42- oxalate

H3O+ hydronium 25

BrO3- bromate 25

CO32- carbonate

HPO42- Hydrogen Phosphate

Di-hydrogen Phosphate H2PO4- Di-hydrogen Phosphate

O22- peroxide

IO3- Iodate 30

C4H4O62- Tartrate

S2O32- Thiosulfate

BO33- Borate

BrO4- Perbromate 35

BrO- Hypobromite

SCN- Thiocyanate

Other Ions

Sn4+ Tin IV (stannic)

Sn2+ Tin II (stannous)

Cu2+ Copper II (Cupric)

Cu+ Copper I (Cuprous)

Fe3+ Iron (III) (Ferric)

Fe2+ Iron (II) (Ferrous) 40