Another important atomic clock used for dating purposes is based on the radioactive decay of the isotope carbon-14, which has a half-life of 5,730 years. Carbon-14 is produced continuously in the Earths upper atmosphere as a result of the bombardment of nitrogen by neutrons from cosmic rays.

What is the most common isotope for radioactive dating?

IsotopesEffective Dating Range (years)Uranium-235Lead-20710 million to origin of EarthRubidium-87Strontium-8710 million to origin of EarthPotassium-40Argon-40100,000 to origin of EarthCarbon-14Nitrogen-140-100,0003 more rows

Is nuclear waste green?

Nuclear plants produce waste while generating electricity, but its not glowing green goo like you see in some movies or The Simpsons.