Developing the model of the atom

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  • Created by: A128456
  • Created on: 13-04-21 14:32

1. In the alpha scattering experiment they observed that a few alpha particles were deflected back what did this show?

  • The atom was mainly empty space
  • Most of the mass was concentrated in the Centre in a tiny nucleus
  • atoms were small
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2. James Chadwick discovered what particle ?

  • protons and electrons
  • Neutrons
  • Electrons
  • protons

3. Why do atoms have no overall charge?

  • protons have no charge and there are more protons than other particles
  • Protons and electrons have an equal but opposite charge
  • neutrons have no charge
  • Electrons have no charge

4. What was J.J Thompson's model?

  • The plum pudding model
  • the gold foil model
  • the alpha particle model
  • the alpha scattering experiment model

5. Who was the first person to think about the model of an atom?

  • Bohr
  • Democritus
  • Rutherford
  • Dalton
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