Periodic Table of the Elements

4. 1. I am 20.7% of topaz, and topaz means "fire" in the ancient Indian language of Sanskrit. 2. I am in a nonstick pan that has PTFE coating, and PTFE was used by NASA to make spacesuits because it protected against heat.
5. Since me in my pure form does not react easily, my liquid form can be used to freeze and preserve items such as blood samples.
6. The waste product of my fuel is steam.
9. I am found in more than 30 kinds of mineral.
11. Recycling one of my cans saves enough energy to run a TV for three hours.
12. Nearly all of my minerals are compounds of me and Oxygen.
14. I am the first element to have a discoverer with a recorded name.

1. I am a colorless gas, but I look pale blue as a liquid.
2. A strong but light bike frame is made by fusing my fibers.
3. I have 22 known isotopes.
6. I have the lowest melting point of any element.
7. Cats were sacred in ancient Egypt, so their bodies were mummified, using me.
8. My lights may refer to lighting produced using any noble gas.
10. An electric car can run for at least 40 miles on one charge of my ion battery.
13. My carbide compound is one of the hardest materials in use today.
15. I am in acid rain, which destroys forests by removing nutrients in the soil and in the leaves.