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Xenon (Xe)

Ordnungszahl: 54
Name: Xenon
Namensursprung: Greek: xenos (strange).
Entdeckung: 1898 by Sir William Ramsay; M. W. Travers in England
Beschreibung: Heavy, colorless, odorless, noble gas.
Vorkommen: Obtain from the small quantities in liquid air.
Verwendung: Used for filling flash lamps and other powerful lamps. Electrical excitation of xenon produces a burst of brilliant whtie light. Also used in bubble chambers and modern nuclear power reactors.
Gruppe: Noble Gas
Atomgewicht: 131.29
Schmelzpunkt: -111.9°C
Siedepunkt: -107.1°C
Dichte bei 293 K: 0.00588 g/cm³
Aggregatszustand bei Raumtemperatur: Gas
Schalen: 2,8,18,18,8
Orbitale: [Kr] 4d10 5s2 5p6
Valenzen: 0
1. Ionisierungs- potential: 12.1299 V
2. Ionisierungs- potential: 21.21 V
3. Ionisierungs- potential: 32.10 V
Atomradius: 1.24 Å
Spezifische Wärme: 0.158 J/gK
Verdampfungswärme: 12.636 kJ/mol
Schmelzwärme: 2.297 kJ/mol
Thermischer Ausdehnungskoeffizient: 253 10-6 K-1
Röntgenemission Energie / Wellenlänge:
  KA KB LA LB MA MB      
eV 29672.2 0 4110.1 0 0 0      
Å 0.41785 0 3.0166 0 0 0      
Röntgenabsorption Energie / Wellenlänge:
  K L-I L-II L-III M-I M-II M-III M-IV M-V
eV 34561 5453 5104 4783 1145 0 928.1 0 672
Å 0.35874 2.27371 2.42918 2.59221 10.8284 0 13.3591 0 18.4502
Röntgen Fluoreszenz Ausbeute:
  KA KB LA LB MA MB      
  88.8% 0% 11% 0% 0% 0%      
Nuklide:
  Anteil Gewicht Spin Halbwertszeit Zerfallsmodus
Xe122 0% 122 0 20.1h EC
Xe123 0% 123 3/2 2.00h EC,β+
Xe124 0.096% 123.906 0   Stable
Xe125 0% 125 1/2 17.1h EC
Xe126 0.09% 125.904 0   Stable
Xe127 0% 127 1/2 36.41d EC
Xe128 1.92% 127.904 0   Stable
Xe129 26.44% 128.905 1/2   Stable
Xe129m 0% 129 11/2 8.89d IT
Xe130 4.08% 129.904 0   Stable
Xe131 21.18% 130.905 3/2   Stable
Xe131m 0% 131 11/2 11.9d IT
Xe132 26.89% 131.904 0   Stable
Xe133 0% 133 3/2 5.243d β-
Xe133m 0% 133 11/2 2.19d IT
Xe134 10.44% 133.905 0   Stable
Xe135 0% 135 3/2 9.10h β-
Xe135m 0% 135 11/2 15.36m IT
Xe136 8.87% 135.907 0   Stable
Xe137 0% 137 7/2 3.82m β-
Xe138 0% 138 0 14.13m β-


book | by Dr. Radut