Atomic and nuclear properties of materials:
Molybdenum (Mo)

Quantity	Value	Units	Value	Units
Atomic number	42
Atomic mass	95.94(2)	g mole-1
Specific gravity	10.2	g cm-3
Minimum ionization	1.330	MeV g-1cm2	13.59	MeV cm-1
Nuclear collision length	93.0	g cm-2	9.104	cm
Nuclear interaction length	155.8	g cm-2	15.25	cm
Radiation length	9.80	g cm-2	0.9592	cm
Critical energy	13.85	MeV (for e-)	13.39	MeV (for e+)
Molière radius	15.01	g cm-2	1.469	cm
Plasma energy	60.95	eV
Muon critical energy	235.	GeV

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
Table of isotopes
x ray mass attenuation coefficients