Atomic and nuclear properties of materials:
Gold (Au)

Quantity	Value	Units	Value	Units
Atomic number	79
Atomic mass	196.966569(4)	g mole-1
Density	19.3	g cm-3
Minimum ionization	1.134	MeV g-1cm2	21.90	MeV cm-1
Nuclear collision length	112.5	g cm-2	5.822	cm
Nuclear interaction length	196.3	g cm-2	10.16	cm
Pion collision length	135.8	g cm-2	7.031	cm
Pion interaction length	223.0	g cm-2	11.54	cm
Radiation length	6.46	g cm-2	0.3344	cm
Critical energy	7.53	MeV (for e-)	7.26	MeV (for e+)
Molière radius	18.19	g cm-2	0.9415	cm
Plasma energy	80.21	eV
Muon critical energy	143.	GeV
Melting point	1337.	K	1064.	C
Boiling point @ 1 atm	3129.	K	2856.	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 Warning: may not be current
x ray mass attenuation coefficients