Community Chemistry 5

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Across
  1. 5. Element that has lost an electron from its outer shell
  2. 6. Ionic compound with a 1:1 ratio of anion to cation
  3. 7. Inert element that does not react with others
  4. 8. Most useful scientific tool; home to elements
  5. 11. Chemical reaction that needs energy to proceed
  6. 13. Chemical bonding of two charged particles
  7. 14. Number of valence electrons held by all alkili metals
  8. 15. Most reactive metals in periodic table
  9. 16. Says that each element is going to try to fill shell
  10. 18. What you have before a chemical reaction
Down
  1. 1. Element whose outer shell gained an electron
  2. 2. Energy that is key to salt formation
  3. 3. Chemical reaction in which energy is a product
  4. 4. Any electron in the outer shell
  5. 9. Energy needed to remove or add an electron
  6. 10. Compounds that exist as gasses at room temperature
  7. 12. Most reactive non metal group
  8. 17. The result of a chemical reaction