The Plum Pudding Model (AQA GCSE Physics Combined Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
What is the plum pudding model?
What is the plum pudding model?
Model of atom with electrons in sphere of positive charge
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
Discovery that led to plum pudding model
Discovery that led to plum pudding model
The electron
Dalton's 1800 atomic theory
Dalton's 1800 atomic theory
Atoms are tiny spheres that cannot be divided
When did J.J. Thomson discover the electron?
When did J.J. Thomson discover the electron?
1897
Positive part of plum pudding model
Positive part of plum pudding model
Sphere of positive charge
Location of electrons in plum pudding model
Location of electrons in plum pudding model
Dispersed throughout positive pudding
Overall charge of atom in plum pudding model
Overall charge of atom in plum pudding model
Neutral
Why electrons dispersed in plum pudding model
Why electrons dispersed in plum pudding model
To cancel out the charges