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5 Written questions

5 Matching questions

  1. Hunds rule
  2. Bohr
  3. Soddy
  4. Planck
  5. Dalton
  1. a discovered isotope
  2. b contributed to concept of energy levels to atomic theory, electrons move in circular orbits around nucleus, electrons jump to different energy levels
  3. c pairs of electrons are not formed until each orbital of each level has one electron
  4. d tiny indivisible particles called atoms, combined, seperated, rearranged, subdivided, created, destroyed, size mass are identical
  5. e proposed light energy is emitted as particles carrying definite quantities of energy in small amounts

5 Multiple choice questions

  1. designed balance, performed quantitative experiments, Law of Conservation of Mass
  2. electrons enter lowest energy level first
  3. discovered the electron, Plum pudding model
  4. proposed light is energy that behaves as particles, photoelectric effect
  5. oil drop experiment led to determine the charge of an electron

5 True/False questions

  1. Debrogllecontributed to concept of energy levels to atomic theory, electrons move in circular orbits around nucleus, electrons jump to different energy levels

          

  2. Berzeliusreplaced diagrams with letters for elements

          

  3. Marie Curiecoined it

          

  4. Daltondeveloped a system of naming elements, used circles and derivations of circles for elements

          

  5. Bequerelcontributed to concept of energy levels to atomic theory, electrons move in circular orbits around nucleus, electrons jump to different energy levels

          

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