Periodic Table Cross Word

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Across
  1. 2. earth metals, the family that contains calcium and magnesium
  2. 4. the period with 3 electron shells
  3. 5. the number of elements in Period 1
  4. 6. shell, the place that holds the electrons used to decide an element's family
  5. 8. gases, the family with full outermost electron shells
  6. 12. the categories that are vertical
  7. 17. the compound of a halogen and another element
  8. 20. metals, can have more than 8 electrons on the second outermost shell
Down
  1. 1. The atomic number of the first transition metal on the periodic table
  2. 3. the number of these on your outermost shell determines your family
  3. 7. the amount of these determines the element's period
  4. 9. the kind of solution you get when you mix in an alkali earth metal
  5. 10. electrons, the name for the electrons on the outermost shell
  6. 11. how many elements alkali metals has
  7. 13. the fifth alkaline earth metal
  8. 14. the first element of the first period
  9. 15. the family that contains 7 electrons on their outermost shell
  10. 16. metals, the family with 1 electron on their outermost shell
  11. 18. Where will you never find a bonded noble gas?
  12. 19. the categories that are horizontal