Across
- 2. All radioactive elements decay to become this element
- 5. Most common element in the universe
- 6. Rekha's Dream office (also names compounds)
- 8. 100th on the list
- 10. Tetrahedral-Tetra Valent
- 11. The only element named after a person living presently
- 15. Positively charged electron
- 16. This element killed the person who discovered it
- 18. Discovered by a university named after the state
- 19. Stannum
- 20. Heaviest element
- 21. "No" symbol discovered by the Nobel Institute
- 22. sub-atomic particle not present in all atoms
Down
- 1. Was the standard for relative atomic mass till 1961 before C-12
- 3. a Helium ion
- 4. First Man-Made element
- 7. Lights up your day
- 9. Costly extremely rare element with the highest boiling point of all the elements
- 12. 1 of the 2 liquid elements at room temperature
- 13. Most electronegative element
- 14. Element Dual Valency
- 17. Hydrogyrum