Periodic Table Vocabulary

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Across
  1. 6. vertical columns on the periodic table
  2. 7. reactions that absorb heat
  3. 8. able to be shaped into something else
  4. 9. protons + neutrons
  5. 13. substance that allows electricity to flow easily
  6. 14. a stable subatomic particle in all atomic nuclei
  7. 16. all the elements to the left of the staircase
  8. 18. function describing the orbit of electrons around an atom
  9. 21. chemically inactive
  10. 24. the number of valence electrons is equal to the atoms main group number
  11. 25. a chemical substance that connot be broken down into other substances
  12. 26. second family/group
Down
  1. 1. seventh family/group
  2. 2. all of the elements to the right of the staircase
  3. 3. combining substances to make a new substance
  4. 4. a particle of matter
  5. 5. central core of an atom consisting of protons and neutrons
  6. 10. all of the elements touching the staircase [excluding Aluminum]
  7. 11. shiny
  8. 12. able to be drawn into wire
  9. 15. eighth family/group
  10. 17. neither a conductor or insulator
  11. 19. reactions that release heat
  12. 20. first family/group
  13. 22. horizontal rows on the periodic table
  14. 23. a stable subatomic particle with a negative electric charge
  15. 27. a subatomic particle with no electric charge