PERIODIC TABLE (GROUP 17)

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Across
  1. 4. Halogens do not occur in the free state (True/False)
  2. 6. What is the atomicity of halogens
  3. 8. The atoms all have _______ valence electrons.
  4. 9. What is the most reactive element in group 17?
  5. 10. Chemical properties of group 17 involves the accepting 2 electrons to form negatively charged ion (True/False)
Down
  1. 1. The atomic size of group 17 elements _______ down the group.
  2. 2. Element X dissolve in water to produce a solution that turns the blue litmus paper red and then decolorized. What is element X?
  3. 3. Which halogen is radioactive
  4. 5. All elements in group 17 elements are
  5. 7. Group 17 of the periodic table is known by the name of