MEDIUM
7th ICSE
IMPORTANT
Earn 100

Complete the following table:

Name of Radical Symbol Valency
Carbonate   divalent
  PO43-  
Sulphate   trivalent
Ammonium   monovalent
Calcium    
Iron II    

 

Important Questions on Atomic Structure

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>WORKSHEET>Q 1

Complete the table by writing the formula or molecular formulae of the elements and their atomicity.

Name of the elements Formula Atomicity
Bromine    
Phosphorus    
Sulphur    
Oxygen    
Magnesium    
Iodine