Discovery of the Proton & Neutron (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Practise the cards
12 cards from this deck
Scientist who proposed spherical model of atom in 1803
Scientist who proposed spherical model of atom in 1803
John Dalton
What Dalton's spherical model stated about atoms
What Dalton's spherical model stated about atoms
Tiny spheres that can't be broken into smaller parts
Scientist who discovered the electron
Scientist who discovered the electron
JJ Thomson
Description of plum pudding model
Description of plum pudding model
Electrons randomly distributed in a positively charged sphere
Particles Rutherford fired at gold foil in 1909
Particles Rutherford fired at gold foil in 1909
Positively charged alpha particles
Main observation from Rutherford's gold foil experiment
Main observation from Rutherford's gold foil experiment
Most alpha particles went straight through
What happened to small percentage of alpha particles
What happened to small percentage of alpha particles
Scattered in different directions
Year and scientist who identified the proton
Year and scientist who identified the proton
Ernest Rutherford in 1917
What a proton is
What a proton is
Positively charged particle in the nucleus
Where mass of atom is concentrated
Where mass of atom is concentrated
Small and dense central nucleus
Charge of the nucleus (Rutherford conclusion)
Charge of the nucleus (Rutherford conclusion)
Positively charged
Model of atom developed from Rutherford's work
Model of atom developed from Rutherford's work
Nuclear model