Atomic and nuclear properties of materials:
Antimony (Sb)

Quantity	Value	Units	Value	Units
Atomic number	51
Atomic mass	121.760(1)	g mole-1
Specific gravity	6.69	g cm-3
Minimum ionization	1.259	MeV g-1cm2	8.424	MeV cm-1
Nuclear collision length	98.9	g cm-2	14.78	cm
Nuclear interaction length	168.0	g cm-2	25.11	cm
Radiation length	8.73	g cm-2	1.304	cm
Critical energy	11.70	MeV (for e-)	11.31	MeV (for e+)
Molière radius	15.81	g cm-2	2.363	cm
Plasma energy	48.24	eV
Muon critical energy	204.	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