Across
- 1. A particle with negative charge
- 5. A silver grey metal
- 6. Elements in water
- 10. The table full of elements
- 12. A soft light metallic element
- 13. The rows in periodic table
- 15. Forms about 78% of earth's atmosphere
- 17. A column of elements in the periodic table
Down
- 2. Combined with water in swimming pools
- 3. Same mass as Proton but with no electric charge
- 4. A silver-white metal
- 6. The first element in periodic table
- 7. Two or more elements Chemically combined.
- 8. A compound released into the atmosphere
- 9. Gas found in balloons
- 11. A Soft Grey Metal
- 13. A particle with positive charge
- 14. A basic unit of chemical elements
- 16. When going through photosynthesis the plant gives out?