Atomic and nuclear properties of materials:
Lead (Pb)

Quantity	Value	Units	Value	Units
Atomic number	82
Atomic mass	207.2(1)	g mole-1
Specific gravity	11.4	g cm-3
Minimum ionization	1.122	MeV g-1cm2	12.74	MeV cm-1
Nuclear collision length	114.1	g cm-2	10.05	cm
Nuclear interaction length	199.6	g cm-2	17.59	cm
Radiation length	6.37	g cm-2	0.5612	cm
Critical energy	7.43	MeV (for e-)	7.16	MeV (for e+)
Molière radius	18.18	g cm-2	1.602	cm
Plasma energy	61.07	eV
Muon critical energy	141.	GeV
Melting point	600.6	K	327.5	C
Boiling point @ 1 atm	2022.	K	1749.	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
Table of isotopes
x ray mass attenuation coefficients