Periodic Table

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Across
  1. 3. Element found in group 16, period 3
  2. 5. Element found in group 18, period 2
  3. 6. Central part of an atom
  4. 7. Noble …. have a stable electron configuration
  5. 9. Non-metal found on the metal side of the periodic table
  6. 11. Atomic …. Is the number of protons and neutrons
  7. 12. A noble gas
  8. 14. I have 15 protons
Down
  1. 1. Group of elements found in the central part of the periodic table
  2. 2. A positively charged particle
  3. 4. A sub-atomic particle
  4. 8. Element found in group 2, period 2
  5. 10. Atomic ….. is the number of protons
  6. 13. Element found in group 13, period 1