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7 Written questions

6 Multiple choice questions

  1. Discovered the neutron, worked on the Manhattan Project during WWII
  2. same element with different number of neutrons
  3. Groups 1A through 7A (aka Groups 1, 2, 13-18); display a wide range of physical and chemical properties
  4. weighted average of all the isotopes
  5. Number of Protons (Z)
  6. Greek philosopher, 1st to conceive of matter being particulate

6 True/False questions

  1. Alkali MetalsGroup 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. Ernest RutherfordNumber of protons plus number of neutrons (A)

          

  3. NucleusGroup 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

          

  4. 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

          

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

          

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