- Atomic Radius (Å)
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.
54 Atomic Number
131.29 u Atomic Mass
161.45 K Melting Point
165.03 K Boiling Point
5.89 g/liter Density
1.2 Å Atomic Radius
1.4 Å Covalent Radius
12.13 eV First Ionization Energy
-77 Electron Affinity
5 Number of Shells
8 Electron Valency
2, 8, 18, 18, 8 Electron Shell Occupations
0.16 J/g Specific Heat