Element Vocab Crossword

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Across
  1. 1. Electrons on the outer ring of the element shell
  2. 5. Rows on the periodic table
  3. 6. Positively charged center of an atom
  4. 7. Metals founding the first group of the periodic table
  5. 11. The smallest part of an element
  6. 12. The only gaseous element to the left of the stair step line
  7. 14. Columns on the periodic table
  8. 15. Number of protons
  9. 16. Atoms with the same element, but different numbers of neutrons
  10. 17. Capital letter, With or without a lowercase accompanying it
  11. 18. Group 17 on the periodic table, most reactive gases
  12. 19. Elements found to the left of the periodic table
Down
  1. 2. Group 18 on the periodic table, least reactive
  2. 3. Elements found to the left of the stair step line
  3. 4. Negative charge in particles
  4. 8. Elements found on the stair step line
  5. 9. The only metal not solid at room temperature
  6. 10. Neutral charge in particles
  7. 11. Number of protons + number of neutrons
  8. 13. Positive charge in particles