Across
- 3. Precious grey metal (6)
- 5. Smallest particle of an element (4)
- 6. positive particle (7)
- 7. precious yellow metal (4)
- 10. subatomic particle(7)
Down
- 1. negative particle (9)
- 2. Wire in electrical fire (7)
- 4. two or more elements bonded (8)
- 6. Atomic number 78 (8)
- 8. precious gem (7)
- 9. two or more of any atoms bonded (8)