periodic table

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Across
  1. 4. First person to develope periodic table by increasing atomic mass
  2. 5. Made first published periodic table
Down
  1. 1. contains both metals and nonmetals is a property of what
  2. 2. shiny and good conductors are properties of what
  3. 3. arranged elements in order of atomic number
  4. 4. dull and poor conductors are properties of what