Periodic Table

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12345678910111213141516171819
Across
  1. 3. atoms of the same element with different number of neutrons
  2. 4. I am the largest alkali metal
  3. 6. I am the smallest alkaline earth metal
  4. 9. I have 2 protons
  5. 10. I have an atomic number of 16.
  6. 12. Good conductor of electricity
  7. 14. I am element number 92
  8. 15. I have an atomic mass of 16.
  9. 17. My chemical symbol is W.
  10. 18. I have 56 electrons.
  11. 19. Characteristics of both metals and nonmetals
Down
  1. 1. charge of a proton
  2. 2. I have the largest atomic radius in row 4
  3. 5. a metal that is liquid at room temperature
  4. 7. My chemical symbol is Fl
  5. 8. An unreactive group of elements.
  6. 10. I have 47 protons
  7. 11. I am the smallest halogen
  8. 13. Most reactive group of metals.
  9. 16. charge of an electron