Chapter 12 Vocab

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Across
  1. 2. on of the metals of group 1 of the periodic table
  2. 3. one of the elements of group 17 of the periodic table, combine with most metals to form salts
  3. 6. something that occurs or repeats at regular intervals
  4. 7. the law that states the repeating chemical & physical properties of elements change periodically with the atomic numbers of the elements
Down
  1. 1. one of the elements of group 18 of the periodic table, unreactive
  2. 2. one of the elements of group 2 of the periodic table
  3. 4. the vertical column of elements in the periodic table
  4. 5. a horizontal row of elements in the periodic table