The Plum Pudding Model (AQA GCSE Physics): Flashcards
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Practise the cards
9 cards from this deck
Who proposed the plum pudding model?
Who proposed the plum pudding model?
J.J. Thomson
When did Thomson propose the plum pudding model?
When did Thomson propose the plum pudding model?
1904
What particle did J.J. Thomson discover?
What particle did J.J. Thomson discover?
Electron
When did Thomson discover the electron?
When did Thomson discover the electron?
1897
What was Dalton's atomic model?
What was Dalton's atomic model?
Tiny spheres (atoms) that could not be divided
What charge was the sphere in the plum pudding model?
What charge was the sphere in the plum pudding model?
Positive
Where were electrons located in the plum pudding model?
Where were electrons located in the plum pudding model?
Dispersed throughout the positive sphere
Overall charge of atom in plum pudding model
Overall charge of atom in plum pudding model
Neutral
Why were electrons dispersed in the positive sphere?
Why were electrons dispersed in the positive sphere?
To balance/neutralize the positive charge