How many neutrons in the iron nucleus?

1 Answer
Nov 14, 2016

You haven't specified the isotope.

Explanation:

""^56Fe is approx. 95% abundant. Because it is an iron isotope, we know that there are 26 protons in the element's nucleus (how do we know this?). Because it is the ""^56Fe isotope, there must be 56-26=30" neutrons" in this nucleus.

And thus there are 26+30 nucleons, massive nuclear particles present in the nucleus. Capisce?