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AQA A-Level valency and charges notes
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Hydrogen ion H +Hydride ion H -
Group 1 ion +
Silver ion Ag +
Group 7 ion -
Copper(I) ion Cu +
Ammonium ion NH4 +
Hydroxide ion OH -
Nitrate ion NO3 -
Manganate(VII) ion MnO4 -
Hydrogencarbonate ion HCO3 -
Group 2 ion 2+
Copper(II) ion Cu 2+
Iron(II) ion Fe 2+
Lead(II) ion Pb 2+
Zinc ion Zn 2+
Oxide ion O 2-
Sulfide ion S 2-
Carbonate ion CO3 2-
Sulfate ion SO4 2-
Dichromate(VI) ion Cr2O7 2-
Aluminium ion Al 3+
Boron ion B 3+
Chromium(III) ion Cr 3+
Iron(III) ion Fe 3+
Nitride ion N 3-
Phosphate ion PO4 3-
Carbon (C) valency 4
Silicon (Si) valency 4
Lead(IV) (Pb) valency 4
Sulfur (IV) valency 4
Phosphorus (V) (P) valency 5
Sulfur (VI) (S) valency 6
Hydrogen chloride (hydrochloric acid) HCl
Aluminium oxide Al2O3
Nitric acid HNO3
Hydrogen sulfide H2S
Ammonium sulfate (NH4)2SO4
Iron(II) hydroxide Fe(OH)2
Potassium
Sodium carbonate Na2CO3
Lithium hydride LiH
Magnesium nitride Mg3N2
Lead (IV) oxide PbO2
Barium hydroxide Ba(O
Phosphoric acid H3PO4
Potassium sulphate K
Sulfur (VI) oxid
Ammonia NH3
Calcium hydrogencarbonate Ca(HCO3)2
Copper (I) sulfate Cu2SO4
Iron(III) carbonate Fe2(CO3)3
Zinc nitrate Zn(NO3)2
Magnesium hydroxide Mg(OH)2
Silver oxide Ag2O
Phosphorus (V) oxide P2O5
Chromium (III) bromide CrBr3
Aluminium hydroxide Al(OH)3
Ammonium phosphate (NH4)3PO4
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