The hypothesis of Thomson's atomic model was that an atom is posively charged sphere and in which negatively charged electron are embedded in it but later it was found to be not true by niels Bohr.
The above hypothesis of Thomson's atomic model was false because according to niels Bohr 'The mass of any atoms is localize at the center of an atom which is positively charged while negatively charged electrons revolved around the positive charged'.
The J.J Thomson give the world Thomson model of the atom in 1904 . Thomson model is also known as the plum pudding model .
The difference is due to the degree of dissociation of the substances. HCl dissociates completely into ions when added to water, while this is not the case for HC₂H₃O₂; therefore, HCl has a lower pH.
