The Periodic Table

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Across
  1. 2. the ease and speed with which an element combines, or reacts, with other elements and compounds
  2. 6. an element in Group 18 of the periodic table
  3. 7. shininess
  4. 10. the ability of an object to carry electrical current
  5. 12. an element found in Group 17 of the periodic table
  6. 14. an element in group 1 of the periodic table
  7. 16. arrangements of the elements
  8. 17. a class of elements characterized by physical properties that include shininess, malleability, ductility, and conductitvity
  9. 19. the gradual wearing away of a metal element due to wear away the metal
Down
  1. 1. a term used to describe materials that can be hammered or rolled into flat sheets
  2. 3. 1 of the elements in group 3
  3. 4. the ability of an object to transfer heat
  4. 5. a horizontal row on elements in the periodic table
  5. 6. an element that lacks most of the properties of a metal
  6. 8. a substance that can conduct electric current under some conditions
  7. 9. the average mass of all the isotopes of an element
  8. 11. a one or two letter representation of an element
  9. 13. a term used to describe a material that can be pulled out into long wire
  10. 15. a element that has some characteristics of both metal and nonmetals
  11. 18. a vertical row of elements in the periodic table