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7 Written questions

6 Multiple choice questions

  1. Discovered that the nucleus was positive, mostly empty space, and very dense. Also discovered the proton. Performed the Gold Foil Experiment
  2. 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
  3. Number of protons plus number of neutrons (A)
  4. weighted average of all the isotopes
  5. 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
  6. Discovered the neutron, worked on the Manhattan Project during WWII

6 True/False questions

  1. Inner Transition MetalsGroups 3-12


  2. JJ ThomsonDiscovered the electron, Plum Pudding Model, Cathode Ray Experiment (ray of electrons bent toward the positive plate)


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


  4. Transition ElementsGroups 3-12


  5. Alkali MetalsGroup 2A (aka Group 2); shiny solids; harder than alkali metals; turn white when exposed to oxygen; never found alone in nature; make +2 ions


  6. HalogensGroup 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


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