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5 Written Questions

5 Matching Questions

  1. period
  2. metalloid
  3. SI
  4. Thomson model of the atom
  5. gas
  1. a Thomson asserted that atoms are not indivisible but are composed of smaller parts; they contain both positively and negatively charged particles- protons as well as electrons.
  2. b An agreed upon system of measurements by scientists.
  3. c An element having properties that are intermediate between those of metals and nonmetals.
  4. d A state of matter that has no shape or definite volume.
  5. e The horizontal groupings (rows) of elements in the periodic table.

5 Multiple Choice Questions

  1. Mater without a uniform composition-- having two or more components or phases.
  2. The maximum amount of product that can be produced according to a balanced equation.
  3. A measure of the intensity of heat, or of how hot or cold a system is; SI unit is the kelvin (K).
  4. A subatomic particle that is electrically neutral and is found in the nucleus of an atom.
  5. A form of energy associated with the motion of small particles of matter.

5 True/False Questions

  1. liquidThe amount of space occupied by matter; measured in liters and milliliters.

          

  2. photonA subatomic particle that is electrically neutral and is found in the nucleus of an atom.

          

  3. VSEPRValence-shell electron-pair repulsion; a simple model for predicting the shapes of molecules.

          

  4. percent yieldThe percent of the theoretical yield that the actual yield was.

          

  5. specific gravityThe ratio of the density of one substance to the density of another substance taken as a standard. Water is usually the standard for liquids and solids; air, for gases.

          

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