Atomic Theory
Quiz by Trina Boyle
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13 questions
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- Q11. All matter (materials) consists of very small particles called atoms.Dalton's Atomic Theory30s
- Q2J.J. Thomson worked on cathode rays which he suggested consists of very small negatively charged particles called electrons that deflected away from a negative magnetic field. He then developed the Plum Pudding Model.Cathode Ray Tube30s
- Q3Using a block containing radioactive alpha particles, Rutherford shot these particles at a piece of gold foil which projected these deflected beams onto a circular zinc sulfide fluorescent screen. This lead to the discovery of the nucleus as some alpha particles were deflected at astonishing angles and there had to have been a denser mass or protons in the atom.Gold Foil Experiment30s
- Q4Stresses that the nucleus (of protons and neutrons) take up the center and is extremely small. Just as the nucleus accounts for the weight, the electrons around it account for the space.Modern View of the Atom30s
- Q5See imageJohn Dalton Atomic Theory Model30s
- Q6See imageErnest Rutherford Atomic Model30s
- Q7See imageJ. J. Thomson Plum Pudding Model30s
- Q8See imageElectron Cloud Model30s
- Q9See imageNiels Bohr - Bohr Model30s
- Q10RutherfordDiscovered nucleus30s
- Q11ThompsonDiscovered electrons30s
- Q12BohrElectrons travel in set orbits30s
- Q13helped develop the electron cloud modelSchrödinger & Heisenberg30s
