Chemistry

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Across
  1. 3. energy levels or rings
  2. 6. Tells how stable an element is.
  3. 7. the structure in the atom
  4. 8. holds 2 electrons
  5. 11. has a positive charge in the nucleus
  6. 14. holds 8 electrons
  7. 15. Other word for stability
  8. 17. Other word for rows.
  9. 18. Most stable side on the periodic table.
  10. 19. How stable an element is.
Down
  1. 1. made up of protons and neutrons
  2. 2. on the periodic table
  3. 4. smallest part of an element
  4. 5. made up of electrons
  5. 9. has zero charge in the nucleus
  6. 10. has a negative charge outside the nucleus
  7. 12. Other word for columns.
  8. 13. holds 18 electrons
  9. 16. Least stable side on the periodic table.