[chaos_5]

"So, if half of the carbon 14 has decayed to nitrogen 14"

Now thats an act of alchemy I would love to see!!

Carbon-14 decays to carbon.

[Brilliant]

No, actually, it does not:

"Both C-12 and C-13 are stable, but C-14 decays by very weak beta decay to nitrogen-14 with a half-life of approximately 5,730 years."

http://www.ndt-ed.org/EducationResources/CommunityCollege/Radiography/Physics/carbondating.htm