Atomic Structure Theories
- Created by: joelym
- Created on: 24-04-18 16:54
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- Atomic Structure Theories
- Rutherford
- 1909
- Nuclear model
- Alpha particle scattering experiments
- Expected particles to go straight through and some to be slightly deflected
- Most passed straight through and some were slightly deflected but some were deflected backwards
- This proved there was a positively charged nucleus in the centre where most of the atom's mass is concentrated
- Alpha particle scattering experiments
- Bohr
- 1913
- Nuclear model
- Electrons orbited the nucleus in fixed shells
- Dalton
- 1803
- Solid spheres
- J.J. Thomson
- 1897
- Plum pudding model
- A postive 'pudding' containing negative charged particles (electrons)
- Rutherford
- Alpha particle scattering experiments
- Expected particles to go straight through and some to be slightly deflected
- Most passed straight through and some were slightly deflected but some were deflected backwards
- This proved there was a positively charged nucleus in the centre where most of the atom's mass is concentrated
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