Chemical Formulae and Valency 0.0 / 5 ? ChemistryCalculationsASAQA Created by: alice.reader10Created on: 25-09-18 20:11 Hydrogen/hydride (H) 1 1 of 34 Group 1 ions (Li+, Na+, K+, Rb+, Cs+) 1 2 of 34 Silver ion (Ag+) 1 3 of 34 Group 7 elements (F, Cl, Br, I) 1 4 of 34 Copper (I) ion (Cu+) 1 5 of 34 Ammonium ion (NH4 +) 1 6 of 34 Hydroxide ion (OH-) 1 7 of 34 Nitrate ion (NO3 -) 1 8 of 34 Manganate (VII) ion (MnO4 -) 1 9 of 34 Hydrogencarbonate ion (HCO3 -) 1 10 of 34 Group 2 ions (Mg2+, Ca2+, Sr2+, Ba2+) 2 11 of 34 Copper (II) ion (Cu2+) 2 12 of 34 Iron (II) ion (Fe2+) 2 13 of 34 Lead (II) ion (Pb2+) 2 14 of 34 Zinc ion (Zn2+) 2 15 of 34 Oxygen/oxide (O) 2 16 of 34 Sulphur/sulphide (S) 2 17 of 34 Carbonate ion (CO3 2-) 2 18 of 34 Sulphate ion (SO4 2-) 2 19 of 34 Sulphite ion (SO3 2-) 2 20 of 34 Dichromate (VI) ion (Cr2O7 2-) 2 21 of 34 Aluminium (Al) 3 22 of 34 Boron (B) 3 23 of 34 Chromium (III) (Cr3+) 3 24 of 34 Iron (III) (Fe3+) 3 25 of 34 Nitrogen/nitride (N) 3 26 of 34 Phosphorus (III) (P) 3 27 of 34 Phosphate ion (PO4 3-) 3 28 of 34 Carbon (C) 4 29 of 34 Silicon (Si) 4 30 of 34 Lead (IV) (Pb) 4 31 of 34 Sulphur (IV) (S) 4 32 of 34 Phosphorus (V) (P) 5 33 of 34 Sulphur (VI) (S) 6 34 of 34
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