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5 Written questions

5 Matching questions

  1. Planck
  2. Thomson
  3. Einstein
  4. Hunds rule
  5. Mendeleev
  1. a proposed light is energy that behaves as particles, photoelectric effect
  2. b proposed light energy is emitted as particles carrying definite quantities of energy in small amounts
  3. c arranged elements according to atomic mass, called it "Periodic Table"
  4. d discovered the electron, Plum pudding model
  5. e pairs of electrons are not formed until each orbital of each level has one electron

5 Multiple choice questions

  1. designed balance, performed quantitative experiments, Law of Conservation of Mass
  2. discovered isotope
  3. oil drop experiment led to determine the charge of an electron
  4. determined relationship of protons to atomic emission spectra, determined properties of each element, gave element atomic number based on protons
  5. max number of electrons in each orbital is 2 with opposite spins

5 True/False questions

  1. Daltontiny indivisible particles called atoms, combined, seperated, rearranged, subdivided, created, destroyed, size mass are identical

          

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

          

  3. Schroedingerdesigned balance, performed quantitative experiments, Law of Conservation of Mass

          

  4. Berzeliusreplaced diagrams with letters for elements

          

  5. Marie Curiemax number of electrons in each orbital is 2 with opposite spins