Periodic Table Vocabulary

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