Periodic Table

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Across
  1. 3. - my chemical symbol is Em
  2. 4. - I have 2 neutrons and I´m in group 17, I am...
  3. 7. - I have electrons my atomic number is 79, I am...
  4. 9. - I have protons, I am...
  5. 12. - I have 31 neutrons and I´m in group 10, I am...
  6. 14. - I have protons my atomic number is 85 I am...
  7. 15. - my chemical symbol is Cf
  8. 16. - I have 11.99 neutrons and I´m in group 11, I am...
  9. 18. - I have electrons my atomic number is 78, I am...
  10. 20. - The systematic study of the structure and behavior of the physical and natural world.
  11. 21. - I am found in group 7 and period 14, I am...
  12. 22. - the basic unit of a chemical element
  13. 24. - a group is a column of elements in the periodic table
Down
  1. 1. - the vertical column on the periodic table are called families, because of their similar chemical behaviors.
  2. 2. - I am found in group 4 period 7
  3. 5. - my chemical symbol is Es
  4. 6. - I am found in group 1 period 7
  5. 8. - I am found in group 2 period 7
  6. 10. - I have 13.98 neutrons and I´m in group 12, I am...
  7. 11. on The Periodic Table - The elements are arranged in seven horizontal rows called periods or series.
  8. 13. - I have 12.31 neutrons and I´m in group 12, I am...
  9. 16. -
  10. 17. - I am found in group 3 period 7
  11. 19. - my chemical symbol is Bk
  12. 23. - I have an atomic number of 75, I am...