Y9 Chemistry - Formula literacy GCSE

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Last updated 7:21 PM on 9/6/26
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6 Terms

1
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+1

H+ (hydrogen ions), NH4+ (ammonium ions), Group 1 ions

2
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+2

Group 2 ions

3
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+3

Group 3 ions

4
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-1

NO3- (nitrate ions), OH- (hydroxide ions), Group 7 ions

5
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-2

CO3 2- (carbonate ions), SO4 2- (sulphate ions)

6
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-3

PO4 3- (phosphate ions)