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Atomic Theory
Mind map: Atomic theory
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Atomic Theory
John Dalton
- 1808
- "All atoms are made up of small individual particles"
- Atoms of the same element are identical
- atoms rearranged in a chemical reaction
- Compounds are 2 or more atoms together
J.J Thomson
- 1987
- Electron
- Plum Pudding
- negative electrons in a sphere of positive
- Atom is neutral
Ernest Rutherford
- 1913
- discovery of nucleus
- Protons = Electrons
- electrons are around a positive nucleus
- protons are 2000 times heavier than electrons
- most mass is in the nucleus
James Chadwick
- 1932
- neutron
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- GCSE Chemistry (Atomic Structure) Mind Map on Atomic Theory, created by hannah-lewis on 17/05/2013.
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- hannah-lewis
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