PERIODIC TABLE

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Across
  1. 3. An element in group 16 and period 3
  2. 4. neutral gas that belongs in group 16
  3. 5. Group 17 is also known as
  4. 8. Element represented by "sb"
Down
  1. 1. An yellowish - green element in group 17
  2. 2. An amphoteric metal that belongs to group 13
  3. 4. A noble gas with atomic number 18
  4. 5. An element that has the lowest density
  5. 6. An alkaline earth metal with atomic number 20
  6. 7. A element in group 14 and period 3 which is metalloid