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5 Written questions

5 Matching questions

  1. Bohr's model
  2. J. Chadwick
  3. Protons stay ______ but Neutrons _____
  4. Groups/Families
  5. Atomic Mass
  1. a Discovers the neutron
  2. b Protons stay the same but Neutrons vary.
  3. c (a) similar to Rutherford (b) Electrons travel in a set path of levels (c) Distinct steps between levels (d) Described Electrons as moving around the nucleus in fixed units
  4. d in AMU (atomic mass units)
  5. e Have similar chemical properties. Columns

5 Multiple choice questions

  1. He
  2. Neutral
  3. (a) Nucleus with positive charge (b) Atom is mostly empty space (c) electrons travel like planets around the nucleus
  4. Atoms of the same kinda of matter with different numbers of neutrons
  5. Reintroduced the atom with evidence

5 True/False questions

  1. J.J. ThompsonIdentified the electron

          

  2. BerylliumBe

          

  3. HydrogenB

          

  4. BoronNe

          

  5. Nonmetalsdull, brittle, low density, melt at a low temperature, don't conduct heat/electricity well

          

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