These cosmic rays shatter the nuclei in gas atoms in the upper atmosphere releasing neutrons.The displaced neutrons bond with nitrogen-14 (N-14) converting it into C-14.How radioactive carbon is formed Normal carbon atoms weigh 12 atomic mass units, while a radioactive form of carbon weighs 14 atomic mass units, which is called carbon-14 (C-14). It is estimated that only one out of every trillion carbon atoms is C-14.C-14 is formed in the earth’s upper atmosphere as a consequence of cosmic radiation bombardment.If the dates received from carbon dating are accurate, it would be a huge problem for those who believe in the Genesis account of creation.However, when one starts with the Bible and interprets the information received from carbon dating accordingly, one will soon learn that in no way does carbon dating disprove the young earth.
From the primary researcher, 'This study is a major step in terms of rethinking how geologists interpret variations in the 13C/12C ratio throughout Earth's history.
This means if a specimen contained, say, a pound of C-14 (to make things understandable), in 5,730 years, half of it will be gone, and in another 5,730 years, half of the remaining C-14 will disappear.
After about 8 half-lives, the remaining amount of C-14 (if there is any remaining) is too small to be measured.
Because C-14 is radioactive, it is unstable, and is constantly decaying back into N-14.
But, as C-14 continuously decays, it is also continuously being replaced by new C-14 being formed.