The Periodic Table of Elements

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Across
  1. 4. / A table where the elements are sorted into groups such as, metals, nonmetals, metaloids and gasses
  2. 6. / Every element has an international one, two or three letter code. This code is called an element's-
Down
  1. 1. / The mass of an element's atom is called it's-
  2. 2. / The vertical items of the periodic table
  3. 3. / The horizontal lines of the periodic table
  4. 5. / The periodic table contains information about pure substances called-