chemistry paper 1 revision
- Created by: suhayb
- Created on: 05-12-18 18:34
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particles
date:1897
particle discovered: electron
person: Thompson
date: 1919
particle discovered: proton
person: Ernest Rutherford
date: 1932
particle discovered: neutron
person: james chadwick
proton mass and charges
particle charge mass
electron -1 0.0005
proton +1 …
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