Question

What is the atomicity of H2S , H2SO4

Answer 1

Thanks for asking the question.

Atomicity is defined as the number of atoms in a molecule. Hence the atomicity of H2S will be 3 as it contains two hydrogen and one atom of Sulphur. Similarly the atomicity of H2SO4 is seven as it has 2 hydrogen, one Sulphur and 4 atoms of oxygen.
Hope it helps.

Answer 2

(1×1)+(12×1)=1+12

=13