However, conclusively partitioning a system using two stable isotopes (for example, 13 C and 12 C ... we now have three unknowns but still only two equations: Thus, the problem is underdetermined ...

Isotopes of an element share the same number of protons but have different numbers of neutrons. Let’s use carbon as an example. There are three isotopes of carbon found in nature – carbon-12 ...

OTTAWA – The federal government has chosen three organizations to work on developing a new medical isotope. The University of Alberta, TRIUMF in British Columbia and Prairie Isotope Production ...