Xenon

Ang xenon mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Xe ug kaiphan nga atomik 54. Ang xenon mao ang gas nga halangdon.

Xenon
54Xe
Kr ↑ Xe ↓ Rn Periodic table iodine ← xenon → caesium
Panagway
colorless gas, exhibiting a blue glow when placed in a high voltage electric field Spectral lines of xenon
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	xenon, Xe, 54
Paglitok	/ˈzɛnɒn/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-on]] or /ˈziːnɒn/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-non]]
Kategoriyang elemento	gas nga halangdon
Group, period, block	18, 5, p
Gibug-aton sa atomo	131.293(6)
Kontorno sa elektron	[Kr] 5s2 4d10 5p6 2, 8, 18, 18, 8 Electron shells of xenon (2, 8, 18, 18, 8)
History
Pagkadiskobre	William Ramsay and Morris Travers (1898)
First isolation	William Ramsay and Morris Travers (1898)
Physical properties
Phase	gas
Density	(0 °C, 101.325 kPa) 5.894 g/L
Liquid density at b.p.	3.057 g·cm−3
Melting point	(101.325 kPa) 161.4 K, -111.7 °C, -169.1 °F
Boiling point	(101.325 kPa) 165.03 K, -108.12 °C, -162.62 °F
Triple point	161.405 K (-112°C), 81.6 kPa
Critical point	289.77 K, 5.841 MPa
Heat of fusion	(101.325 kPa) 2.27 kJ·mol−1
Heat of vaporization	(101.325 kPa) 12.64 kJ·mol−1
Molar heat capacity	5R/2 = 20.786 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 83 92 103 117 137 165
Atomic properties
Oxidation states	0, +1, +2, +4, +6, +8 (rarely more than 0) (weakly acidic oxide)
Electronegativity	2.6 (Pauling scale)
Ionization energies	1st: 1170.4 kJ·mol−1
	2nd: 2046.4 kJ·mol−1
	3rd: 3099.4 kJ·mol−1
Covalent radius	140±9 pm
Van der Waals radius	216 pm
Miscellanea
Crystal structure	face-centered cubic
Magnetic ordering	diamagnetic
Thermal conductivity	5.65×10-3  W·m−1·K−1
Speed of sound	(liquid) 1090 m/s; (gas) 169 m·s−1
CAS registry number	7440-63-3
Most stable isotopes
Main article: Isotopes of xenon
iso NA half-life DM DE (MeV) DP 124Xe 0.095% >4.8×1016 y β+β+ 0.825 124Te 125Xe syn 16.9 h ε 1.652 125I 126Xe 0.089% 126Xe is stable with 72 neutrons 127Xe syn 36.345 d ε 0.662 127I 128Xe 1.91% 128Xe is stable with 74 neutrons 129Xe 26.4% 129Xe is stable with 75 neutrons 130Xe 4.07% 130Xe is stable with 76 neutrons 131Xe 21.2% 131Xe is stable with 77 neutrons 132Xe 26.9% 132Xe is stable with 78 neutrons 133Xe syn 5.247 d β− 0.427 133Cs 134Xe 10.4% >1.1×1016 y β−β− 2.864 134Ba 135Xe syn 9.14 h β− 1.16 135Cs 136Xe 8.86% 2.11×1021 y β−β− 2.45783 136Ba

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