Periodic Table Crossword Puzzle

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Across
  1. 3. A metal with 28 electrons.
  2. 4. The element in the 14th group and the 5th period.
  3. 6. A silvery white metal, located in the 3rd period, that is used to make salt.
  4. 8. A metal with 30 electrons that is useful in making paint.
  5. 10. A metal that has 25 electrons.
  6. 13. An element in the 15th group with 16 neutrons.
  7. 15. Element with only 1 electron.
  8. 16. A gas with a mass number of 19.
  9. 19. An element in the 14th group that is known as the "basis of life".
  10. 20. The element that makes up 78% of the air and is found in the 15th group.
  11. 22. An element in the 13th group that is the most abundant metal in the Earth's crust.
  12. 24. An element with an atomic number of 47 that is used to make film for cameras.
  13. 25. An element in the 14th group that is often mistaken for the end of your pencil.
Down
  1. 1. Element with 26 protons.
  2. 2. A gas that has only 2 electrons.
  3. 5. An element with 20 neutrons that is found in your teeth and bones.
  4. 6. The 2nd most abundant element in the Earth's crust, which has a mass number of 28.09.
  5. 7. An element in the 2nd group that is used to make fireworks and medicines.
  6. 9. A metal that is liquid at room temperature, which is used in thermometers.
  7. 11. An element with a mass number of 35.45.
  8. 12. The first element in the 4th period, which is used to make fertilizer.
  9. 14. A gas with 8 protons and 8 neutrons.
  10. 17. The only element in the 17th group that is a liquid at room temperature.
  11. 18. The element that has 2 electrons in the first energy level, 8 in the second energy level, and 6 in the third energy level.
  12. 21. An element with an atomic number of 79.
  13. 23. An element in the 17th group, with an atomic number of 53.