Xenon

Xenon (pronounced /ˈzɛnɒn/ ZEN-on or /ˈziːnɒn/ ZEE-non) is a chemical element represented by the symbol Xe. Its atomic number is 54. A colorless, heavy, odorless noble gas, xenon 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. Naturally occurring xenon consists of nine sta... more

Chemical Element

The 54th Element in the Periodic Table

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Iodine

Iodine (pronounced /ˈaɪ.ɵdaɪn/ EYE-o-dyne, /ˈaɪ.ɵdɨn/ EYE-o-dən, or in chemistry /ˈaɪ.ɵdiːn/ EYE-o-deen; from Greek: ιώδης iodes "violet"), is a...

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Caesium

Caesium or cesium (pronounced /ˈsiːziəm/, SEE-zee-əm) is the chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-gold...

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Symbol:

  • Xe

Atomic mass:

Mass Uncertainty
  • 131.293 u (2.18017E-16 µg )
  • 0.006 u (9.96E-21 µg )

Electrons per shell:

  • 2,8,18,18,8

Electron affinity:

Electronegativity (Pauling scale):

  • 2.6

Atomic radius:

  • 108 pm (0.00000425 )

Covalent radius:

  • 1.3 pm (5.1E-8 )

Van der Waals radius:

  • 216 pm (0.0000085 )

Melting Point:

  • -111.76 °C (-169.17 °F )

Boiling Point:

  • -108.05 °C (-162.49 °F )

Periodic table block:

Ionization Energy:

  • 12.1298 eV (0.0000121298 MeV )

Discovery Date:

  • 1898

Discovering Country:

Electron Configuration:

  • Kr 4d10 5s2 5p6
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