Question

Energy levels of an electron in a physics atom for class12

Answer 1

Dalton's atomic theory:-

All elements are consists of very small invisible particles called atoms atoms of same elements are exactly same and atoms of different elements are different.

Thomson's atomic model:-

Every atom is uniformly positive charged sphere of radius of the order to 10 to the power minus 10 m in which entire mass is uniformly distributed and negatively charged atom electrons are embedded randomly the atom as a whole is neutral.