Across
- 1. Common table salt component
- 4. Precious metal, symbol Ag
- 5. First element, symbol H
- 7. Precious yellow metal, symbol Au
- 8. Found in bones and teeth
- 10. Metal in steel, symbol Fe
Down
- 2. Essential for respiration
- 3. Most abundant gas in Earth's air
- 5. Noble gas used in balloons
- 6. Noble gas used in bright signs
- 8. Basis of all organic life
- 9. Light metal used in batteries