Periodic Table and Trends

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. Two or more atoms bound together as a single unit and forming part of a molecule (5)
  2. 5. Of or being a nonmetallic element that has some of the properties of ___ (9)
  3. 7. Any of the bivalent metals of group II of the periodic table (13)
  4. 8. An amount of time (6)
  5. 9. Any of several chemical elements that are usually shiny solids that conduct heat or electricity (plural) (6)
  6. 11. The act of passing from one state or place to the next (10)
  7. 12. Any of the chemically inert ___ elements of the helium group in the periodic table (8)

Down

  1. 1. A chemical element lacking typical metallic properties (plural) (9)
  2. 2. Any of five related nonmetallic elements that are all monovalent and readily form negative ions (plural) (8)
  3. 4. Any of the monovalent ___ of group I of the periodic table (plural) (12)
  4. 6. The principle that chemical properties of the elements are ___ functions of their atomic (11)
  5. 10. Russian chemist who developed a periodic table of the chemical elements and predicted the discovery (9)