| 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- |
|
