Discovered By: Sir William Ramsay, Morris William Travers
Discovery year: 1898

The following table showing some properties of Xenon(Xe):

Table Example
Atomic number 54
Group 18
Period 5
Block p
Electrons 54
Protons 54
Neutrons 77
Atomic weight 131.293
Oxidation states 0, +2, +4, +6, +8
Electrons per shell K2 L8 M18 N18 O8


Table Example
Electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6
Gas atomic multiplicities 1
Atomic radius 108 pm
Covalent radius 140 pm
Van der Waals radius 216 pm
Boiling point -108°C
Melting point -111.8°C
Phase Gas
Fusion heat 2.3 kJ.mol^-1
Vapoprization heat 12.64 kJ.mol^-1


Table Example
Specific heat 158.32 J.kg^-1.K^-1
Color Colorless
Density 5.9 kg.m^-3
Molar volume 2.2*10^-2 m^3.mol^-1
Refractive index 1.000702
Sound speed 1090 m.s^-1
Magnetic type Diamagnetic
Volume magnetic susceptibility -2.54*10^-8
Electronegativity 2.6
Valence 6


Table Example
Electron affinity 0 kJ.mol^-1
First ionization energy 1170.4 kJ.mol^-1
Radioactive No
Neutron cross section 25 barn