Chemistry

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Across
  1. 1. (Na)
  2. 4. a positively charged ion
  3. 6. krypton, xenon, and
  4. 7. fluorine, chlorine, bromine, iodine, and
  5. 9. something not
  6. 11. shell of the atom
  7. 13. to attract a bonding pair of electrons
  8. 16. molecule with a net electric charge
  9. 20. substances characterized by high electrical and
  10. 21. the distance between the nuclei
  11. 22. table of the chemical elements
  12. 24. hydrogen (H), lithium
  13. 25. a measure of the tendency of an
  14. 26. a column of elements in the
  15. 28. a negatively charged ion
  16. 30. helium, neon,
Down
  1. 2. any process by which electrically
  2. 3. helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine
  3. 5. atomic numbers show a periodic variation of
  4. 8. invented periodic table
  5. 10. the successive occupation of the orbitals in a
  6. 12. charged atoms
  7. 14. structure and of most of their properties
  8. 15. atoms or molecules are converted to
  9. 17. those of metals and solid nonmetals or
  10. 18. titanium, copper, nickel, silver, platinum, and gold
  11. 19. the elements when arranged in the order of
  12. 23. conductivity
  13. 27. element whose properties are intermediate
  14. 29. two identical atoms bonded together