What is the percent of carbon-14 remaining after two half lives?
25 percent After two half-lives, 25 percent of the original carbon-14 atoms remain.
What percent of carbon 14 would be left after 5700 years?
This makes sense since 50% would remain after 5700 years, 25% would remain after 11,400 years, 12.5% would remain after 17,100 years, 6.25% would remain after 22,800 years, 3.125% would remain after 28,500 years, and 1.5625% would remain after 34,200 years.
What happens to the amount of N 14 as C 14 decays?
During this process, an atom of 14C decays into an atom of 14N, during which one of the neutrons in the carbon atom becomes a proton. This increases the number of protons in the atom by one, creating a nitrogen atom rather than a carbon atom.
Whats the original amount of carbon-14?
There are three naturally occurring isotopes of carbon on Earth: carbon-12, which makes up 99% of all carbon on Earth; carbon-13, which makes up 1%; and carbon-14, which occurs in trace amounts, making up about 1 or 1.5 atoms per 1012 atoms of carbon in the atmosphere.