How many neutrons in the iron nucleus?

1 Answer
anor277
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?

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