It's J.J. Thomson He had the plum pudding experiment The answer is Thomson
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
Ernest Rutherford and J.J. Thomson worked together on research related to the structure of the atom. Thomson discovered the electron and proposed the plum pudding model of the atom, while Rutherford conducted the famous gold foil experiment that led to the discovery of the atomic nucleus. Their work laid the foundation for modern atomic theory.
The results of this experiment led to the model of the atom called "Rutherford's model", rather than Thomson's model, which it basically disproved. Some of the alpha particles were deflected in ways that suggested to Rutherford that most of the atom's mass was concentrated in a positively charged "nucleus".
Rutherford, Geiger and Marsden observed that a beam of alpha particles is deflected on a gold foil. They concluded that this effect is due to a positive entity in the atom. And they discovered the atomic nucleus, separate from electrons and the model of Thomson become obsolete.
It's J.J. Thomson He had the plum pudding experiment The answer is Thomson
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
The Geiger-Marsden experiment, which is also called the gold foil experiment or the Rutherford experiment, was conducted by Hans Geiger and Ernest Marsden in 1909, under Earnest Rutherford's direction. You need a link to the Wikipedia post on this ground-breaking experiment, and we've got one for you.
Ernest Rutherford and J.J. Thomson worked together on research related to the structure of the atom. Thomson discovered the electron and proposed the plum pudding model of the atom, while Rutherford conducted the famous gold foil experiment that led to the discovery of the atomic nucleus. Their work laid the foundation for modern atomic theory.
The results of this experiment led to the model of the atom called "Rutherford's model", rather than Thomson's model, which it basically disproved. Some of the alpha particles were deflected in ways that suggested to Rutherford that most of the atom's mass was concentrated in a positively charged "nucleus".
We should never say that an experiment has proven something. The Rutherford gold foil experiment led to the hypothesis that an atom's positive charge is concentrated in an incredibly small space at the atom's center.
Rutherfords experiment proved the existence of a nucleus as some alpha particles "bounced back" from the gold foil sample . Thomson model did not involve a nucleus and predicted just a slight deflection or none at all.
Rutherford, Geiger and Marsden observed that a beam of alpha particles is deflected on a gold foil. They concluded that this effect is due to a positive entity in the atom. And they discovered the atomic nucleus, separate from electrons and the model of Thomson become obsolete.
No, Niels Bohr was not J.J. Thomson's student. Niels Bohr was a student of Ernest Rutherford, who was a colleague of J.J. Thomson. Bohr developed his own atomic model, known as the Bohr model, which built upon the work of Thomson and Rutherford.
J. J. ThomsonJ. J. Thomson did the cathode ray experiment where he discovered the existence of electrons.
JJ Thomson, Ernest Rutherford