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5 Written questions

5 Multiple choice questions

  1. the horizontal rows of the periodic table of the elements
  2. an arrangement of elements in columns, ordered according to atomic numbers
  3. elements of group 2A; have 2 valence electrons and are reactive
  4. elements that are good conductors of heat and electricity
  5. elements of group 8A; have 8 valence electrons (exception is He) and are inert

5 True/False questions

  1. periodic lawthe repetition of a set of properties, row after row

          

  2. Variation across a periodFrom left to right, the elements become less metallic and more nonmetallic in their properties.

          

  3. nonmetalselements that are poor conductors of heat and electricity

          

  4. metalloidselements with properties that fall between those of metals & nonmetals

          

  5. groupthe horizontal rows of the periodic table of the elements