Across
- 2. - Latin name of potassium
- 4. - This element's chemical symbol is Li
- 6. - Valency of magnesium
- 8. - Atomic no of boron
- 10. - Element with atomic no 4
- 11. - Atomic no of calcium
- 12. - A global warming gas
Down
- 1. - Latin name of sodium
- 3. - This element's chemical symbol is Al
- 5. - Valency of neon
- 7. - An element vital for human beings
- 9. - Atomic no of sulphur