Across
- 2. Can be used as food wrapping/packaging
- 3. Its symbol is K
- 5. This is the lightest halogen
- 6. Heaviest stable halogen
- 10. This is the lightest element
Down
- 1. This element has the atomic number of 12
- 4. Symbol of Ne
- 7. We breathe with this element
- 8. Its symbol is Fe
- 9. Sounds like the thing that stops superman