Across
- 2. poisonous element
- 6. diagonal of block-p in Periodic table
- 8. gas in balloon
- 10. protect simple goiter
Down
- 1. full valence electron as 8
- 3. valence electron as 2
- 4. knife can cut
- 5. liquid in VIIA
- 7. Atomic number is 11
- 9. Electrical conductivity