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P1.1 the particle model
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- 1P1.1: matter The particle modelP1.1 The particle model
-was developed over various years and scientists.
-Dalton then JJ Thompson to Rutherford then Bohr. - 2John Dalton -first discovered the atom. -believed they are tiny, solid and spherical. -said they could not be separated.JJ Thompson.
-discovered electron
-state’s that electrons were scattered in a cloud of positive charge
-called it “the plum pudding model.
- 3Ernest Rutherford -found atoms were mostly empty space - shot alpha particles at thin gold foil and found most went through -some deflected at large angled but his theory was proved.
- 4Neils Bohr -discovered electrons orbit around the nucleus. -found they have fixed energies and charges.
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- GCSE Physics Flashcards on P1.1 the particle model , created by Abbie Gray on 11/08/2020.
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- Abbie Gray
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