54 Xe 131.2936

Xenon

NOBLE GAS

Phase: Gas

Discovered: William Ramsay

Block: P

Summary

Xenon is a chemical element with symbol Xe and atomic number 54. It is a colorless, dense, odorless noble gas, that occurs in the Earth's atmosphere in trace amounts. Although generally unreactive, xenon can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized.

Appearance: colorless gas, exhibiting a blue glow when placed in a high voltage electric field

Source: Wikipedia

Physical Properties

Atomic Mass 131.2936 u

Density 5.894 g/cm³

Melting Point 161.4 K

Boiling Point 165.051 K

Molar Heat N/A

Electron Affinity -77 kJ/mol

Ionization Energies

1^st: 1170.4 kJ/mol

2^nd: 2046.4 kJ/mol

3^rd: 3099.4 kJ/mol