Discovery of the Proton & Neutron (AQA GCSE Physics Combined Science): Flashcards
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Scientist who proposed spherical model in 1803
Scientist who proposed spherical model in 1803
John Dalton
Description of Dalton's spherical model
Description of Dalton's spherical model
Tiny spheres that can't be broken into smaller parts
Scientist who discovered the electron
Scientist who discovered the electron
JJ Thomson
Plum pudding model description
Plum pudding model description
Electrons randomly distributed in a positively charged sphere
Year of Rutherford's gold foil experiment
Year of Rutherford's gold foil experiment
1909
Particles fired in gold foil experiment
Particles fired in gold foil experiment
Positively charged alpha particles
Main result of gold foil experiment
Main result of gold foil experiment
Most alpha particles went straight through the foil
What happened to small percentage of alpha particles
What happened to small percentage of alpha particles
Scattered in different directions
What gold foil experiment showed about atom
What gold foil experiment showed about atom
Mostly empty space with small positive charges
Particle Rutherford identified in 1917
Particle Rutherford identified in 1917
Proton
Definition of a proton
Definition of a proton
Positively charged particle in the nucleus
Where atom's mass is concentrated
Where atom's mass is concentrated
Very small and dense central nucleus
Charge of the nucleus
Charge of the nucleus
Positively charged
Model resulting from Rutherford's conclusions
Model resulting from Rutherford's conclusions
Nuclear model
Year spherical model accepted until
Year spherical model accepted until
1909