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7 Written questions

6 Multiple choice questions

  1. 1. All elements are composed of tiny indivisible particles called atoms
    2.Atoms of the same elements are the same
    3. atoms can be combined in simple whole number ratios to make compounds
    4. Chemical reactions occur when atoms are separated, joined, rearranged
  2. Group 1A (aka Group 1); low density, soft, never found alone in nature, reacts with water, make +1 ions, hydrogen is not an alkali metal
  3. Number of Protons (Z)
  4. Group 8A (aka Group 18); all inert (non-reactive) gases; always found alone in nature; all other elements strive to have a noble gas configuration
  5. Discovered the electron, Plum Pudding Model, Cathode Ray Experiment (ray of electrons bent toward the positive plate)
  6. Number of protons plus number of neutrons (A)

6 True/False questions

  1. Average Atomic MassGroup 1A (aka Group 1); low density, soft, never found alone in nature, reacts with water, make +1 ions, hydrogen is not an alkali metal

          

  2. James ChadwickDiscovered the neutron, worked on the Manhattan Project during WWII

          

  3. Isotopessame element with different number of neutrons

          

  4. Halogens1. All elements are composed of tiny indivisible particles called atoms
    2.Atoms of the same elements are the same
    3. atoms can be combined in simple whole number ratios to make compounds
    4. Chemical reactions occur when atoms are separated, joined, rearranged

          

  5. Inner Transition MetalsTop row: Lanthanides (4f); Bottom Row: Actinides (5f); most are radioactive; all actinides starting at plutonium are man-made; all are solids

          

  6. Representative ElementsGroups 1A through 7A (aka Groups 1, 2, 13-18); display a wide range of physical and chemical properties