1.
The universe's #1 element.
3.
Lightweight battery metal.
4.
Space telescope mirror material.
5.
Essential for slime and Pyrex.
6.
Basis of life and diamonds.
7.
78% of the air we breathe.
8.
Life-sustaining gas (Atomic No. 8).
9.
Cavity-fighting element.
10.
Bright light of the Las Vegas Strip.
11.
Half of a salt shaker.
12.
Flashy metal in sparklers.
13.
Common foil or soda can metal.
14.
The heart of a computer chip.
15.
The "P" in DNA and matchsticks.
16.
Smells like rotten eggs.
17.
Pool-cleaning chemical.
18.
Common inert gas in lightbulbs.
19.
banana-rich electrolyte (Symbol K).
20.
For strong bones and teeth.
