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1. What is atomicity of elements?
  
Atomicity is the present in molecule of an element, compound or substance.
  
2. Calculate the atomicity of \(H_2SO_4\).
 
A molecule of sulphuric acid (\(H_2S0_4\)) consists of hydrogen atoms,  sulphur atom and  oxygen atoms. Hence, sulphuric acid atomicity = 2 + 1 + 4 = .