Periodic Table
Across
- 3. Lights bluish when electricity passes through.
- 4. I am the 6th most common element on Earth.
- 8. I am in the fourth period, and I am poisonous
- 9. I take up about 21% of the air we breathe.
- 10. My atomic number is 94.
- 12. 8 most common element in Earth's Crust
- 14. My atomic number is 16.
- 15. My atomic mass is 121.76
- 17. I am in the Boron family, and in period 3
- 18. Named after the Norse god, Thor.
- 19. I make up 90% of the universe by weight.
Down
- 1. When electricity runs through me, I turn red.
- 2. Million times more radioactive than Uranium
- 4. I am used a lot in cosmetic surgery.
- 5. My atomic weight is 65.38
- 6. Used the 'Little Boy' atomic bomb
- 7. My atomic number is 98.
- 11. Named after the American continent.
- 13. I was discovered in 1744 by Johan Gahn
- 16. I am present in diamonds as well as charcoal.