XENON


Atomic Number: 54
Mass Number: 131.29
Electron Configuration: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶
Melting Point: -111.9^oC
Boiling Point: -107.1^oC
First Ionization Energy: 1170 kJ/mol
Atomic Radius: 130 pm