Atomic and nuclear properties of iron (Fe)
QuantityValueUnits ValueUnits
Atomic number 26     
Atomic mass 55.845(2) g mol-1   
Density 7.874 g cm-3   
Mean excitation energy 286.0 eV   
Minimum ionization 1.451 MeV g-1cm2 11.43 MeV cm-1
Nuclear interaction length 132.1 g cm-2 16.77 cm
Nuclear collision length 81.7 g cm-2 10.37 cm
Pion interaction length 160.7 g cm-2 20.41 cm
Pion collision length 107.0 g cm-2 13.59 cm
Radiation length 13.84 g cm-2 1.757 cm
Critical energy 21.68 MeV (for e-) 21.00 MeV (for e+)
Muon critical energy 347. GeV   
Molière radius 13.53 g cm-2 1.719 cm
Plasma energy ωp 55.17 eV   
Melting point 1811. K 1538. C
Boiling point @ 1 atm 3134. K 2861. C
For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PDF TEXT
Table of muon dE/dx and Range: PDF TEXT
Explanation of some entries
Table of isotopes via WIKIPEDIA
x ray mass attenuation coefficients from NIST