Periodic Table

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Across
  1. 3. Horizontal row in the periodic table to called a
  2. 4. Particle in nucleus that has a positive charge
  3. 6. Negatively charged particle that orbits the center of an atom
  4. 8. Ease and speed with which one element combines with another
  5. 9. Very center of an atom
Down
  1. 1. Way light interacts with the surface of a crystal, rock, or mineral.
  2. 2. Deterioration of a metal due to a chemical reaction
  3. 4. Term for the rows of the periodic table
  4. 5. Particle in nucleus that has a neutral charge
  5. 7. Elements that are good conductors of electricity and heat often shiny and bendable