Periodic Table Practice

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Across
  1. 6. The number of these correspond to the column numbers
  2. 11. This group has 2 valence electrons
  3. 13. How many valence electrons does gallium have?
  4. 14. This model only shows valence electrons
  5. 16. I am in period 4 and have similar properties to sodium
  6. 18. I have 2 valence electrons and found in limestone
  7. 19. How many valence electrons does Lithium have?
  8. 22. I am in period three and have 7 valence electrons
Down
  1. 1. I belong to no special ‘group’ such as halogens, noble gases or alkali metals
  2. 2. How many valence electrons do halogens have?
  3. 3. This type of element is usually found as a gas...usually!
  4. 4. This group of elements all have 3 valence electrons
  5. 5. This element is found in family 3a, period 2.
  6. 7. This element has the same number of valence electrons as O, S, Te and Po
  7. 8. I have 4 valence electrons and I use 3 energy levels
  8. 9. This type of element is malleable, ductile and a good conductor of electricity
  9. 10. The number of protons and neutrons in an atom is that atoms _____ number
  10. 12. This energy level can hold 8 electrons
  11. 15. How many valence electrons does Barium possess?
  12. 17. I have 6 valence electrons and am in period 2
  13. 20. How many valence electrons do the noble gases posses?
  14. 21. How many valence electrons does antimony have?