Periodic table

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Across
  1. 1. The size of an atom
  2. 5. The energy to remove the most loosely bound electron is called _______________ energy.
  3. 6. The first row of pulled out elements on the bottom of the periodic table
  4. 7. The row number tells you the number of:
  5. 11. Number of valence electrons in column 2
  6. 13. The trend of electronegativity energy is that it increases:
  7. 14. Describes the ability of an atom to attract electrons when bonding
  8. 15. Column 15 on the periodic table
  9. 16. Number of valence electrons in column 15
  10. 17. Column 17 on the periodic table
  11. 18. The second row of pulled out elements on the bottom of the periodic table
Down
  1. 1. Column 1 on the periodic table
  2. 2. The elements on the left and middle of the periodic table (other than hydrogen)
  3. 3. The trend of atomic radius is that it increases:
  4. 4. Most of the elements the stair-step line on the periodic table
  5. 8. Column 2 on the periodic table
  6. 9. Column 18 on the periodic table
  7. 10. Number of valence electrons in column 8
  8. 12. The elements on the right of the periodic table and hydrogen