Xenon

Basic Information Crystal Structure Isotope Facts Related Links


Basic Data

Symbol: Xe
Atomic Number: 54
Atomic weight: 131.3u
Melting Point: 161.36K
Boiling Point: 165.03K
Number of Protons/Electrons: 54
Number of Neutrons: 77
Classification: Noble Gas
Crystal Structure: Face Centered Cubic
Density at 293 K: 5.89g/mL
Color: Colorless gas
Bonding radius: 1.31A
Atomic radius: 1.24A
Ionization Potential: 12.13V
Electronegativity:
Heat of vaporization: 12.636kJ/mol
Heat of fusion: 2.297kJ/mol
Specific heat: 0.158J/gK
Electron configuration: [Kr]4d105s25p6



Crystal Structure


Isotopes

Isotope Half Life
Xe122 20.1 hours
Xe123 2hours
Xe124 Stable
Xe125 17.1 hours
Xe126 Stable
Xe127 36.41 days
Xe128 Stable
Xe129 Stable
Xe129m 8.89 days
Xe130 Stable
Xe131 Stable
Xe131m 4.9 days
Xe132 Stable
Xe133 5.24 days
Xe133m 2.19 days
Xe134 Stable
Xe135 9.1 hours
Xe135m 15.36 minutes
Xe136 Stable
Xe137 3.82 minutes
Xe138 14.13 minutes


Facts

Date of Discovery: 1898
Discoverer: Sir William Ramsay
Uses: Powerful lamps, bubble chambers
Obtained From: Liquid air


Related Links