| Ordnungszahl: |
10 |
| Name: |
Neon |
| Namensursprung: |
Greek: neos (new). |
| Entdeckung: |
1898 by Sir William Ramsey, M.W. Travers in England |
| Beschreibung: |
Colorless, odorless, tasteless inert gas. Fourth most abundant element in the universe and fifth most abundant in the earth's atmosphere (18.18 ppm). |
| Vorkommen: |
Obtained from production of liquid air as a byproduct of producing liquid oxygen and nitrogen. |
| Verwendung: |
Primarily for lighting. |
| Gruppe: |
Noble Gas |
| Atomgewicht: |
20.1797 |
| Schmelzpunkt: |
-248.67°C |
| Siedepunkt: |
-246.048°C |
| Dichte bei 293 K: |
0.0008999 g/cm³ |
| Aggregatszustand bei Raumtemperatur: |
Gas |
| Schalen: |
2,8 |
| Orbitale: |
[He] 2s2 2p6 |
| Valenzen: |
0 |
| 1. Ionisierungs- potential: |
21.5645 V |
| 2. Ionisierungs- potential: |
40.962 V |
| 3. Ionisierungs- potential: |
63.45 V |
| Atomradius: |
0.51 Å |
| Spezifische Wärme: |
0.904 J/gK |
| Verdampfungswärme: |
1.7326 kJ/mol |
| Schmelzwärme: |
0.3317 kJ/mol |
| Thermischer Ausdehnungskoeffizient: |
1900 10-6 K-1 |
| Röntgenemission Energie / Wellenlänge: |
| |
KA |
KB |
LA |
LB |
MA |
MB |
|
|
|
| eV |
848.634 |
0 |
0 |
0 |
0 |
0 |
|
|
|
| Å |
14.61 |
0 |
0 |
0 |
0 |
0 |
|
|
|
|
| Röntgenabsorption Energie / Wellenlänge: |
| |
K |
L-I |
L-II |
L-III |
M-I |
M-II |
M-III |
M-IV |
M-V |
| eV |
866.9 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Å |
14.3022 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
| Röntgen Fluoreszenz Ausbeute: |
| |
KA |
KB |
LA |
LB |
MA |
MB |
|
|
|
| |
1.3% |
0% |
0% |
0% |
0% |
0% |
|
|
|
|
| Nuklide: |
| |
Anteil |
Gewicht |
Spin |
Halbwertszeit |
Zerfallsmodus |
| Ne20 |
90.92% |
19.9924 |
0 |
|
Stable |
| Ne21 |
0.257% |
20.9938 |
3/2 |
|
Stable |
| Ne22 |
8.82% |
21.9914 |
0 |
|
Stable |
|
