17 août 1871 - Rutherford
Description:
Date: 1871 - 1937Country: Britain
Observations/Experiments/Evidence: Ernest Rutherford performed an experiment to test the plum pudding model. He fired energetic a [He2+] particles at a foil, and measured the deflection of the particles as they came out the other side. From this he could deduce information about the structure of the foil.
Discoveries/Conclusions: In 1911, his theory of the composition of the inside of the atoms.
Contribution: First to discover that that atoms have a small charged nucleus surrounded by a large empty space, and are circled by tiny electrons.
Ajouté au bande de temps:
Date:
17 août 1871
Maintenaint
~ Il y a 153 ans