The Plum Pudding Model (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Who proposed the plum pudding model?
Who proposed the plum pudding model?
J.J. Thomson
Year plum pudding model proposed
Year plum pudding model proposed
1904
What did Thomson discover in 1897?
What did Thomson discover in 1897?
The electron
Year of electron discovery
Year of electron discovery
1897
Positive component of plum pudding model
Positive component of 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 atomic charge in plum pudding model
Overall atomic charge in plum pudding model
Neutral
Who proposed indivisible atom spheres (1800)?
Who proposed indivisible atom spheres (1800)?
Dalton
Dalton's description of atoms
Dalton's description of atoms
Tiny spheres that could not be divided
Why electrons dispersed in plum pudding model?
Why electrons dispersed in plum pudding model?
To cancel out charges and make atom neutral