The only letter not appearing on the Periodic Table is the letter "J".
180
A cesium atom in an atomic clock beats over nine billion times a second.
43
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Iron weighs more after it rusts.
16
The bark of an older redwood tree is fireproof.
65
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114