What did JJ Thomson experiment discover?
Key points. J.J. Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson’s plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged “soup.”
Is proton discovered by JJ Thomson?
-The discovery of the proton is credited to Ernest Rutherford, who proved that the nucleus of the hydrogen atom (a proton) is present in the nuclei of all other atoms in the year 1917. Therefore, the answer is option (B) Rutherford.
Who discovered electron proton and Neutron?
Electron, Proton and Neutron were found by the following scientists: Ernest Rutherford discovered protons. Sir James Chadwick, the British Physicist discovered neutrons. J.J Thomson discovered electrons.
Which particle did J.J. Thomson discover?
the electron
In 1897 Thomson discovered the electron and then went on to propose a model for the structure of the atom. His work also led to the invention of the mass spectrograph. The British physicist Joseph John (J. J.)
Who discovered the proton and nucleus?
Rutherford
Rutherford had discovered the atomic nucleus in 1911, and had observed the proton in 1919.
Which particle did JJ Thomson discover?
Who discovered electron proton?
Who discovered electron proton and neutron?
Who discovered the protons inside the nucleus?
In 1919 Rutherford had discovered the proton, a positively charged particle within the atom’s nucleus.
Who discovered the proton and neutron?
Who invented proton neutron?
Discovery of Electrons, Protons and Neutrons
| Discoverer | Year of Discovery | |
|---|---|---|
| Proton | E. Rutherford | 1909 |
| Neutron | James Chadwick | 1932 |
| Electron | J.J. Thomson | 1897 |