Carbon 14 Has a Half Life of About Five Thousand 700 Years

Carbon 14 has a radioactive half life of about five thousand 700 years. It doesn't mean that all the carbon 14 will be gone after another five thousand700 years, nor does it mean that carbon 14 has a full life of 11 thousand 400 years. In fact, what it really means is that after another five Thousand 700 years, half of the remaining sample will have decayed,. leaving you with about a quarter of what you started with.