Atomic and nuclear properties of materials:
Uranium (U )
QuantityValueUnits ValueUnits
Atomic number 92     
Atomic mass [238.02891(3)] g mole-1   
Specific gravity 19.0 g cm-3   
Minimum ionization 1.081 MeV g-1cm2 20.49 MeV cm-1
Nuclear collision length 118.6 g cm-2 6.258 cm
Nuclear interaction length 209.0 g cm-2 11.03 cm
Radiation length 6.00 g cm-2 0.3166 cm
Critical energy 6.65 MeV (for e-) 6.41 MeV (for e+)
Molière radius 19.12 g cm-2 1.009 cm
Plasma energy 77.99 eV   
Muon critical energy 128. GeV   
Melting point 1408. K 1135. C
Boiling point @ 1 atm 4404. K 4131. C
For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT
Table of muon dE/dx and Range: PS PDF TEXT
Explanation of some entries
Note: There is a well-defined terrestrial aboundance for uranium even though it is radioactive.
Table of isotopes
x ray mass attenuation coefficients