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7 Written questions

6 Multiple choice questions

  1. Found mass and charge of electron, performed oil drop experiment
  2. Top row: Lanthanides (4f); Bottom Row: Actinides (5f); most are radioactive; all actinides starting at plutonium are man-made; all are solids
  3. Discovered the neutron, worked on the Manhattan Project during WWII
  4. 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
  5. Group 7A (aka Group 17); never found alone in nature; make -1 ions; Fluoride (F) and Chloride (Cl) are gases at room temperature; Bromine (Br) and Iodine (I) are liquids at room temperature; Astatine (At) is not a halogen
  6. Protons and neutrons, make up most of the mass of the atom, extremely dense

6 True/False questions

  1. Mass NumberNumber of protons plus number of neutrons (A)

          

  2. Noble GasesGroup 8A (aka Group 18); all inert (non-reactive) gases; always found alone in nature; all other elements strive to have a noble gas configuration

          

  3. DemocritusProtons and neutrons, make up most of the mass of the atom, extremely dense

          

  4. Ernest RutherfordNumber of protons plus number of neutrons (A)

          

  5. Atomic Mass Unit (AMU)Number of Protons (Z)

          

  6. Transition ElementsGroups 3-12