Carbon dating elementary
These small diamonds are made by squeezing graphite under high temperatures and pressures for several days or weeks and are primarily used to make things like diamond tipped saw blades.
Although they posses very different physical properties, graphite and diamond differ only in their crystal structure.
Graphite, one of the softest materials known, is a form of carbon that is primarily used as a lubricant.
Although it does occur naturally, most commercial graphite is produced by treating petroleum coke, a black tar residue remaining after the refinement of crude oil, in an oxygen-free oven.
This black soot, also known as lampblack, gas black, channel black or carbon black, is used to make inks, paints and rubber products.
It can also be pressed into shapes and is used to form the cores of most dry cell batteries, among other things.
One of the most frequent uses of radiocarbon dating is to estimate the age of organic remains from archaeological sites.
For example, if the concentration of carbon-14 in the remains of an organism is half of the natural concentration of carbon-14, a scientist would estimate that the organism died about 5,730 years ago, the half-life of carbon-14.
There are nearly ten million known carbon compounds and an entire branch of chemistry, known as organic chemistry, is devoted to their study.
So, every living thing is constantly exchanging carbon-14 with its environment as long as it lives. The carbon in its body will remain until it decomposes or fossilizes.
The amount of carbon-14 gradually decreases through radioactive beta decay with a half-life of 5,730 years.Diamond, the third naturally occurring form of carbon, is one of the hardest substances known.