Chemistry project

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Across
  1. 2. Copper(1) chloride
  2. 5. water
  3. 7. Na and Cl are very different from _____
  4. 9. Chemical bonds form through chemical ____ and result in compounds
  5. 13. magnesium and bromine
  6. 14. Rule of _____ charge
  7. 15. All elements want to be _____
  8. 16. Lithium and Nitride
  9. 18. Ammonia
  10. 19. ΔEN is less then 0.5
  11. 20. Most elements are not found by themselves in _______
  12. 21. Calcium Sulfide
  13. 22. Negatively Charged
  14. 23. ΔEN is greater than 2.0
Down
  1. 1. Group ______ elements have 3 valence electrons
  2. 2. made of ions
  3. 3. Positively Charged
  4. 4. Aluminum Nitride
  5. 6. Strontium and Flourine
  6. 8. Two or more elements chemically bonded
  7. 10. Lithium has ___ valence electron
  8. 11. Sodium have one ______ electron
  9. 12. Ability of an atom to attract e- in a bond
  10. 17. ΔEN is greater than 2.0