Atomic and nuclear properties of materials:
Xenon gas (Xe)

Quantity	Value	Units	Value	Units
Atomic number	54
Atomic mass	131.293(6)	g mole-1
Specific gravity (20° C, 1 atm)	5.48E-03	g cm-3
Mean excitation energy	482.0	eV
Minimum ionization	1.255	MeV g-1cm2	6.882E-03	MeV cm-1
Nuclear collision length	100.8	g cm-2	1.839E+04	cm
Nuclear interaction length	172.1	g cm-2	3.139E+04	cm
Pion collision length	125.0	g cm-2	2.279E+04	cm
Pion interaction length	199.6	g cm-2	3.640E+04	cm
Radiation length	8.48	g cm-2	1547.	cm
Critical energy	12.30	MeV (for e-)	11.91	MeV (for e+)
Molière radius	14.63	g cm-2	2667.	cm
Plasma energy	1.37	eV
Muon critical energy	232.	GeV
Melting point	161.4	K	-111.8	C
Boiling point @ 1 atm	165.1	K	-108.0	C
Index of refraction (@ STP, Na D)	701.	(n-1)x106

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