Specification

Specification https://qualifications.pearson.com/content/dam/pdf/International%20GCSE/Chemistry/2017/specification-and-sample-assessments...

Wednesday, April 18, 2018

1.38

Know the charges of these ions:- Metals in groups 1, 2 and 3 Non-metals in groups 5, 6 and 7 Ag+, Cu2, Fe2+, Fe3+, Pb2+, Zn2+ Hydrogen, hydroxide, ammonium, carbonate, nitrate, sulfate 


Group  
Charge on ion 




1 
1+ 

hydrogen 
1+ 

2 
2+ 

hydroxide 
1- 

3 
3+ 

ammonium 
1+ 

5 
3- 

carbonate 
2- 

6 
2- 

nitrate 
1- 

7 
1- 

sulfate 
2- 


Ag+ 
+1 
Cu2+ 
2+ 
Fe2+ 
2+ 
Fe3+ 
3+ 
Pb2+ 
2+ 
Zn2+ 
2+ 

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