Element Crossword

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Across
  1. 2. Democriticus coined this word
  2. 5. Group five
  3. 6. Which group of the periodic table corresponds with Halogens
  4. 8. The elements that touch the zigzag line (staircase) of the periodic table
  5. 10. K
  6. 12. Atomic mass of Carbon
Down
  1. 1. Elements to the right of the periodic table
  2. 3. The element with 6 protons
  3. 4. Ti
  4. 7. Ra
  5. 9. Atom with different number of Neutrons
  6. 11. Which period of the periodic table corresponds with Lithium (Li)