⁵⁸Fe-Iron

 
58Fe has 26 protons and 32 neutrons.
58Fe is a stable isotope.
The mass excess of 58Fe is -62155.271 with an uncertainty of ±0.316.


The mass was measured using Nuclear Physics and the related equations include:

Influence				 Equations

	86.4%		           57Fe(n, γ)58Fe 1 
	9.4%		          58Fe(n, γ)59Fe 2 
			 4.2%			 58Fe(p, γ)59Co-56Fe()57Co 3 










Reference

1. M.A. Islam, T.J. Kennett, S.A. Kerr, W.V. Prestwich (1980) A self-consistent set of neutron separation energies
  Canadian Journal of Physics 
https://cdnsciencepub.com/doi/abs/10.1139/p80-028

2. A.M.J. Spits, J.A. Akkermans (1973) Investigation of the reaction 37Cl(n, γ)38Cl
  Nuclear Physics A  215(2)
https://www.sciencedirect.com/science/article/pii/0375947473906556#!

3. A. Brondi, R. Moro, P. Pelter, F. Terassi (1975) Gamma-decay of the fragmented analogue of the 59Fe ground state
 Nuovo Cimento A (1965-1970)  30(483-497)
 https://link.springer.com/article/10.1007/BF02730298