Atomic and nuclear properties of darmstadtium (Ds)
Atomic number 110  
Atomic mass [281.1645(6)] g mole-1
Specific gravity ?? g cm-3
Mean excitation energy 1129.0 eV
Minimum ionization 1.079 MeV g-1cm2
Nuclear collision length 124.4 g cm-2
Nuclear interaction length 221.0 g cm-2
Pion collision length 146.9 g cm-2
Pion interaction length 246.8 g cm-2
Radiation length 5.24 g cm-2
Critical energy 5.92 MeV (for e-)
Molière radius 18.76 g cm-2
Plasma energy ωp 67.44 eV
Muon critical energy 111. GeV
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
Note: Since there is no stable isotope, [atomic mass] is that of the longest-lived isotope known as of Jun 2017.
Note: Density 14.0 g/cm3 and Ieff = 1129 eV assumed in calculating critical energies and dE/dx.
Table of isotopes via WIKIPEDIA