| Ordnungszahl: |
86 |
| Name: |
Radon |
| Namensursprung: |
Variation of the name of another element, radium. |
| Entdeckung: |
1898 by Fredrich Ernst Dorn in Germany |
| Beschreibung: |
Colorless, odorless, tasteless, radioactive, heavy, noble gas. |
| Vorkommen: |
Formed from the decay of radium in the earths crust. |
| Verwendung: |
Used to treat some forms of cancer. |
| Gruppe: |
Noble Gas |
| Atomgewicht: |
(222.0176) |
| Schmelzpunkt: |
-71°C |
| Siedepunkt: |
-61.8°C |
| Dichte bei 293 K: |
0.00973 g/cm³ |
| Aggregatszustand bei Raumtemperatur: |
Gas |
| Schalen: |
2,8,18,32,18,8 |
| Orbitale: |
[Xe] 4f14 5d10 6s2 6p6 |
| Valenzen: |
0 |
| 1. Ionisierungs- potential: |
10.7485 V |
| 2. Ionisierungs- potential: |
-- |
| 3. Ionisierungs- potential: |
-- |
| Atomradius: |
1.34 Å |
| Spezifische Wärme: |
0.09 J/gK |
| Verdampfungswärme: |
16.40 kJ/mol |
| Schmelzwärme: |
2.890 kJ/mol |
| Thermischer Ausdehnungskoeffizient: |
-- |
| Röntgenemission Energie / Wellenlänge: |
| |
KA |
KB |
LA |
LB |
MA |
MB |
|
|
|
| eV |
0 |
0 |
11727.4 |
14316.2 |
0 |
0 |
|
|
|
| Å |
0 |
0 |
1.05723 |
0.86605 |
0 |
0 |
|
|
|
|
| Röntgenabsorption Energie / Wellenlänge: |
| |
K |
L-I |
L-II |
L-III |
M-I |
M-II |
M-III |
M-IV |
M-V |
| eV |
97398 |
18048 |
17336 |
14619 |
4482 |
4159 |
3538 |
3022 |
2893 |
| Å |
0.12729 |
0.68697 |
0.71519 |
0.84811 |
2.7663 |
2.98113 |
3.50439 |
4.10276 |
4.2857 |
|
| Röntgen Fluoreszenz Ausbeute: |
| |
KA |
KB |
LA |
LB |
MA |
MB |
|
|
|
| |
97.2% |
0% |
42.5% |
0% |
0% |
0% |
|
|
|
|
| Nuklide: |
| |
Anteil |
Gewicht |
Spin |
Halbwertszeit |
Zerfallsmodus |
| Rn211 |
0% |
210.991 |
1/2 |
14.6h |
EC,β+,α |
| Rn212 |
0% |
211.991 |
0 |
24m |
α |
| Rn217 |
0% |
217.004 |
9/2 |
0.6ms |
α |
| Rn218 |
0% |
218.006 |
0 |
35ms |
α |
| Rn219 |
0% |
219.01 |
5/2 |
3.96s |
α |
| Rn220 |
0% |
220.011 |
0 |
55.61s |
α |
| Rn222 |
0% |
222.018 |
0 |
3.824d |
α |
|
