The Plum Pudding Model (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Who proposed the plum pudding model?
Who proposed the plum pudding model?
J.J. Thomson
When was the plum pudding model proposed?
When was the plum pudding model proposed?
1904
What particle did J.J. Thomson discover?
What particle did J.J. Thomson discover?
Electron
When did J.J. Thomson discover the electron?
When did J.J. Thomson discover the electron?
1897
When did Dalton propose his atomic theory?
When did Dalton propose his atomic theory?
1800
How did Dalton describe atoms?
How did Dalton describe atoms?
Tiny spheres that could not be divided
Positive charge in plum pudding model
Positive charge in plum pudding model
Sphere of positive charge
Where are electrons in plum pudding model?
Where are electrons in plum pudding model?
Dispersed throughout the positive pudding
Overall charge of an atom
Overall charge of an atom
Neutral
Why are electrons dispersed in plum pudding?
Why are electrons dispersed in plum pudding?
To cancel out the charges