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7 Written questions

6 Multiple choice questions

  1. 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
  2. Groups 3-12
  3. 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
  4. Discovered that the nucleus was positive, mostly empty space, and very dense. Also discovered the proton. Performed the Gold Foil Experiment
  5. Protons and neutrons, make up most of the mass of the atom, extremely dense
  6. Number of protons plus number of neutrons (A)

6 True/False questions

  1. Alkaline Earth 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. Robert MillikanFound mass and charge of electron, performed oil drop experiment

          

  3. Atomic Mass Unit (AMU)1 AMU is 1/12 of the mass of C-12

          

  4. Representative ElementsGroups 3-12

          

  5. Atomic NumberNumber of Protons (Z)

          

  6. Average Atomic Massweighted average of all the isotopes

          

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