Define radioactive carbon dating dating coach in san diego
This half-life is about 5,700 years and means that every 5,700 years the amount of carbon-14 in a fossil is only one-half of what it was 5,700 years ago.It also means that if a dead plant has 50% as much carbon-14 in it than in a living plant, the dead plant was alive about 5,700 years ago.
Radiocarbon dating uses carbon-14 to determine the last time something (or someone) was alive.
Eventually, all the carbon-14 in the remains will disappear.
This principle applies equally to a person dying, a corn stalk being cut down, or to a soybean plant being pulled out of the ground.
This carbon-14 immediately starts to radioactively decay but is constantly being recreated.
This leaves the amount in the air relatively constant.