periodic table

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Across
  1. 2. horizontal rows on the periodic table
  2. 4. pure substance that consists of one type of atom
  3. 6. right side of periodic table
  4. 8. nuetral particle in nucleus
  5. 10. positively charged particle in nucleus
Down
  1. 1. shiny, malleable, ductile, good conductors
  2. 3. smallest unit of an element
  3. 5. negatively charged particle in nucleus
  4. 7. found along staircase
  5. 9. vertical columns on the periodic table