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