Periodic Table Vocabulary

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Across
  1. 4. element whose symbol is N
  2. 5. element whose symbol is He
  3. 7. one or two letters that represent and element
  4. 8. number of protons in the nucleus of that element's atom
  5. 11. the group of elements on the right side of the periodic table
  6. 14. the columns in a periodic table
  7. 15. element whose symbol is Fe
  8. 16. the mass of the nucleus of an atom which includes the protons an neutrons
  9. 19. pure substances that cannot be broken down by chemical or physical means
Down
  1. 1. element whose symbol is O
  2. 2. element whose symbol is K
  3. 3. the rows in a periodic table
  4. 5. element whose symbol is H
  5. 6. the diagonal line of elements in the periodic table
  6. 7. element whose symbol is S
  7. 9. element whose symbol is Ni
  8. 10. element whose symbol is Mg
  9. 12. element whose symbol is Ne
  10. 13. element whose symbol is Si
  11. 17. the group of elements on the left side of the periodic table
  12. 18. element whose symbol is C