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5 Written questions

5 Matching questions

  1. Bequerel
  2. Berzelius
  3. Aufbau
  4. Mendeleev
  5. Democritus
  1. a replaced diagrams with letters for elements
  2. b discovered radioactivity
  3. c electrons enter lowest energy level first
  4. d propose that matter is made up of atoms
  5. e arranged elements according to atomic mass, called it "Periodic Table"

5 Multiple choice questions

  1. discovered isotope
  2. coined it
  3. discovered the electron, Plum pudding model
  4. gold foil experiment, discovered nucleus
  5. pairs of electrons are not formed until each orbital of each level has one electron

5 True/False questions

  1. Daltondiscovered the electron, Plum pudding model

          

  2. Chadwickdiscovered the neutron, no charge, same mass as proton

          

  3. Einsteinproposed light is energy that behaves as particles, photoelectric effect

          

  4. Lavoisierdiscovered the electron, Plum pudding model

          

  5. Goldsteinproposed light is energy that behaves as particles, photoelectric effect