What are atoms with the same number of protons but different number of of neutrons called?

1 Answer
Oct 29, 2016

#"Isotopes"#

Explanation:

For the isotopes of hydrogen see this answer. Most elements possess several isotopes, some of which may be especially useful for spectroscopic analysis. The use of #""^13C# in NMR spectroscopy, and #""^13C# is an isotope that has an abundance of only #1%#, is now widespread and routine in organic chemistry.