Periodic table

12345678910
Across
  1. 2. the lightest element
  2. 5. a metalloid found in computer chips
  3. 7. a transition metal found in red blood cells
  4. 9. the horizontal rows In periodic table
  5. 10. an alkali metal
Down
  1. 1. another name for group 18
  2. 2. Another name for group 17
  3. 3. a inner transition element
  4. 4. a vertical column in the periodic table
  5. 6. a transition metal
  6. 8. the lightest metal