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Xenon (Xe)

Atomic number: 54 · Category: noble gas · Group 18 · Period 5 · Phase: Gas

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.

Atomic mass: 131.2936
Density: 5.894
Melting point: 161.4 K
Boiling point: 165.051 K
Appearance: colorless gas, exhibiting a blue glow when placed in a high voltage electric field
Source: Wikipedia
Block: p
CPK color:#429eb0

Electronic structure

Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6
Configuration (semantic): [Kr] 4d10 5s2 5p6
Shells: 2, 8, 18, 18, 8
Electronegativity (Pauling): 2.6
Electron affinity: -77
Ionization energies: 1170.4, 2046.4, 3099.4

Periodic position

Group: 18
Period: 5
xpos: 18
ypos: 5

Spectral/Bohr images

Image
Vial of glowing ultrapure xenon. Original size in cm: 1 x 5
3D Model