How many isotopes does the element Nitrogen have?
Isotopes See also: Isotopes of nitrogen There are two stable isotopes of nitrogen: 14N and 15N. By far the most common is 14N (99.634%), which is produced in the CNO cycle in stars. Of the ten isotopes produced synthetically, 13N has a half life of ten minutes and the remaining isotopes have half lives on the order of seconds or less. Biologically-mediated reactions (e.g., assimilation, nitrification, and denitrification) strongly control nitrogen dynamics in the soil. These reactions typically result in 15N enrichment of the substrate and depletion of the product. 0.73% of the molecular nitrogen in Earth’s atmosphere is comprised of the isotopologue 14N15N and almost all the rest is 14N2. I basically got it word for word at wikipedia.
