AS level Chemistry - atomic structure - atomic models quiz

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1. J J Thompson came up with the plum pudding model, but what was it?

  • A large lumpy mass that was a big mixture of protons, nuetrons and electrons
  • A spherical shape, with a positively charged pudding and randomly dotted negative electrons
  • A negatively charged pudding of electrons, with randomly dotted protons
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2. When an electron _ _ _ _ _ between shells, electromagnetic radiation is _ _ _ _ _ _ _ or _ _ _ _ _ _ _

  • moves, emmited, absorbed
  • expand, changed, re-added
  • shrinks, removed, stays the same

3. Why do scientists not always use the quantum model?

  • There is a lack of evidence for this model, so some scientists prefer to use the Bohr model
  • Becuase it can be too complex, so they use the refined Bohr model
  • It may not be accurate

4. What else did he say about the level of energy in each shell?

  • It is fixed
  • It is very very loud
  • It varies
  • It is always 3 or more

5. What is another atomic model that hasn't been metioned yet?

  • There aren't any other models
  • Quantum model
  • double nucleus model


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