54
Xe
Xenon
Xenon
Xenon (Xe)
Noble Gases · Gas · Period 5 · Group 18
Element Properties
- Atomic Number
- 54
- Symbol
- Xe
- Atomic Mass
- 131.29
- Category
- Noble Gases
- Standard State
- Gas
- Period
- 5
- Group
- 18
- Electronegativity
- 2.6
- Atomic Radius
- 216
- Ionization Energy
- 12.13
- Electron Affinity
- —
- Oxidation States
- 0
- Melting Point
- 161.36 K (-111.79 °C)
- Boiling Point
- 165.03 K (-108.12 °C)
- Density
- 0.005887
- Electron Configuration
- [Kr]5s2 4d10 5p6
- Year Discovered
- 1898
[Kr]5s2 4d10 5p6
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Frequently asked questions
What is the atomic number of Xenon?
The atomic number of Xenon is 54, which equals the number of protons in its nucleus.
What is the atomic mass of Xenon?
The atomic mass of Xenon is approximately 131.29 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Xenon?
The electron configuration of Xenon is [Kr]5s2 4d10 5p6.
Where is Xenon in the periodic table?
Xenon is located in period 5, group 18.
When was Xenon discovered?
Xenon was discovered in 1898.
Related elements
Same group
2
He
Helium
4.003
10
Ne
Neon
20.18
18
Ar
Argon
39.9
36
Kr
Krypton
83.8
86
Rn
Radon
222.018
118
Og
Oganesson
295.216