Week 2 Tracey Doan

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Across
  1. 2. 8 electrons on a shell
  2. 4. only the valence electrons of an atom are involved in chemical bonding
  3. 5. involves 2 pairs of electrons
  4. 8. the ability to attract electrons
  5. 10. positive ions
  6. 11. who put together the periodic table
  7. 12. highly reactive gases
  8. 14. has 8 valence electrons
  9. 15. negative ions
  10. 16. valence shell electron pair repulsion
Down
  1. 1. metal + nonmetal
  2. 3. involves 3 pairs of electrons
  3. 6. has only 2 valence electrons
  4. 7. a covalent bond involving one pair of electrons
  5. 9. a pair of electrons shared by 2 atoms
  6. 10. nonmetal + nonmetal
  7. 13. the steps to divide the nonmetals and metals on the periodic table