The ''plum pudding atomic model" is from J. J. Thomson, year 1904.
Ernest Rutherford is perhaps best known for his model of the atom. He developed his own model, based upon his research, to replace Thomson's plum-pudding model.
The modern atomic model is elaborated by Niels Bohr.
The plum pudding model was proposed by J.J. Thomson in 1904. He was also the one who discovered the electron in 1897, although he called them 'corpuscles' at the time.
Ernest Rutherford created the nuclear model of an atom!
1908.
its chemistry
Thompson discovered the electron and proposed his "Plum Pudding" model of the atom, while Rutherford refined it, moving the electrons to shells outside the nucleus. Google "Rutherford Model" and "Plum Pudding Model" for more info
Ernest Rutherford
Ernest Rutherford
Named for the famous chemist Ernest Rutherford who improved on the "plum pudding" model of the atom by postulating a nucleus which contained most of the atom's mass.
Ernest Rutherford was an investigator of atomic theory, and it was his model of the atom, the one with the mass concentrated in the center, that replaced the J.J. Thompson model. Links are provided below.
its was Ernest Rutherford who proposed the planetary atomic model