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5 Written questions

5 Matching questions

  1. ion
  2. chemical bond
  3. polyatomic ion
  4. valence electrons
  5. compound
  1. a ions made of more than 1 atom
  2. b force of attraction that holds atoms together
  3. c made of two or more elements that are chemically combined
  4. d located in the outermost energy level of an atom
  5. e atom that has lost or gained electrons

5 Multiple choice questions

  1. groups 3-12
  2. results from the attraction of positive and negative ions
  3. have one valence electron
  4. the number of protons in the nucleus of an atom
  5. vertical row on the periodic table

5 True/False questions

  1. elementsbuilding blocks of matter


  2. covalent bondformed when atoms share electrons


  3. scientific theorya well tested idea that explains a wide range of observations


  4. energy levela region around the nucleus in which electrons are found


  5. magnesiumsmallest part of an element