Periodic Table Review A

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Across
  1. 3. solid, diatomic element that gains one electron when forming an ion
  2. 4. metals that form ions with a +1 charge
  3. 5. noble gas with only 2 valence electrons
  4. 8. elements that have properties of both metals and nonmetals
  5. 9. diatomic element; sometimes behaves as a metal, sometimes behaves as a nonmetal
  6. 11. correctly predicted the existence of elements and their properties
  7. 13. groups labeled with a “B” on the periodic table
  8. 16. arranged the elements into groups of three based on shared properties
  9. 18. group name of the elements found in the f-block of period 7
  10. 21. type of elements that are malleable, ductile and good conductors of electricity
  11. 22. metalloid with 4 valence electrons
  12. 23. one of the two names for a column on the periodic table
  13. 24. one of the two names for a column on the periodic table
Down
  1. 1. said that the properties of the elements repeated every seven elements
  2. 2. reordered the elements based on their atomic number rather than atomic weight
  3. 6. name of the group that contains the element Erbium
  4. 7. metals with 2 valence electrons
  5. 10. a row on the periodic table
  6. 12. element that forms a +2 ion, located in Period 4 of the s-block
  7. 14. unreactive elements with 8 valence electrons
  8. 15. diatomic element in Group 5A
  9. 17. type of elements found to the right of the bold, dark line on the periodic table
  10. 19. diatomic element; only liquid nonmetal
  11. 20. only liquid metal