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.
Ernest Rutherford's model of the atom disproved the Plum Pudding Model proposed by J.J. Thomson. Rutherford's gold foil experiment led to the conclusion that the atom is mostly empty space with a small, dense nucleus at the center, which contradicted the idea of electrons being randomly distributed throughout the atom.
Ernest Rutherford disproved the plum pudding model by conducting the gold foil experiment, where he observed that some alpha particles were deflected at large angles, indicating the presence of a small, dense nucleus within the atom, rather than a uniform positive charge distribution as proposed by the plum pudding model.
Ernest Rutherford created the nuclear model of an atom!
Ernest Rutherford's atomic model evolved from the plum pudding model to the nuclear model. In the plum pudding model, he proposed that atoms consist of a positively charged sphere with negatively charged electrons embedded in it. Upon conducting the gold foil experiment and observing that some alpha particles were deflected, he revised his model to include a dense, positively charged nucleus at the center of the atom, surrounded by orbiting electrons. This became known as the nuclear model of the atom.
1908.
its chemistry
Ernest Rutherford's famous gold foil experiment led to the discovery of the atomic nucleus. This discovery changed the atomic model by replacing the plum pudding model with the planetary model, where electrons orbit a central nucleus. Rutherford proposed that the nucleus contained positively charged protons while the electrons orbited around it.
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
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
J.J. Thomson is credited with proposing the plum pudding model of the atom in 1904. This model suggested that the atom is composed of negatively charged electrons scattered throughout a positively charged "pudding" of matter.