Across
- 4. Only metal that is liquid at room temperature
- 6. Element used in computer chips and sand
- 8. Lightest element and first on the periodic table
- 10. Metal used to make steel, atomic number 26
Down
- 1. Element in table salt, symbol Na
- 2. Element that strengthens bones and teeth
- 3. Element essential for all organic life, atomic number 6
- 5. Precious metal with chemical symbol Au
- 7. Gas essential for respiration, atomic number 8
- 9. Noble gas used in bright advertising signs