Periodic Table

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Across
  1. 2. electrons in the outer most shell
  2. 4. the amount of time it takes parent => daughter
  3. 6. stretched into wires
  4. 9. negatively charged
  5. 12. when an element loses or gains electrons
  6. 13. has 8 valence electrons in this family
  7. 15. rows in the periodic table
Down
  1. 1. hammered into sheets
  2. 3. good conductors
  3. 5. elements that have the same amount of protons but different number of neutrons
  4. 7. has both metallic and nonmetallic properties
  5. 8. positively charged
  6. 10. no charge
  7. 11. poor conductors
  8. 14. columns in the periodic table