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Elektronische Daten | Thermische Daten | Sterische Daten | ||
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Schalen: 2,8,18,32,30,8,2 Orbitale: [Rn] 5f12 7s2 Elektronegativität: 1.2, -- 1. Ionization potential: 6.50 eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 3 Electrical conductivity: -- |
Melting point: -- °C Boiling point: -- °C Specific heat: -- J/gK Heat of fusion: -- kJ/mol Heat of vaporization: -- kJ/mol Thermal conductivity: 0.1 W/cmK |
Atomic radius: -- Å Ionic radius: -- Å () Covalent radius: -- Å Atomic volume: -- cm³/mol Density (293 K): -- g/cm³ Crystal structure: -- |
| Legende Taschenrechner |
| Nuklid | Häufigkeit [%] | Masse | Spin | Halbwertszeit | Zerfallsmodus | Zerfallsreihe |
| 249Fm | 0 | 249 | 7/2 | 3m | EC, | View |
| 250Fm | 0 | 250.08 | 0 | 30m | View | |
| 251Fm | 0 | 251 | 9/2 | 5.3h | EC, | View |
| 252Fm | 0 | 252.083 | 0 | 1.058d | View | |
| 253Fm | 0 | 253.085 | 1/2 | 3d | EC, | View |
| 254Fm | 0 | 254.087 | 0 | 3.24h | View | |
| 255Fm | 0 | 255.09 | 7/2 | 20.1h | View | |
| 256Fm | 0 | 256.092 | 0 | 2.63h | SF, | View |
| 257Fm | 0 | 257.095 | 9/2 | 100.5d | View |
| Legende |
| Herkunft des Namen: | Benannt nach dem Wissenschaftler Enrico Fermi. |
| Beschreibung: | Synthetisches, radioaktives Metall. |
| Entdeckt von: | Argonne, Los Alamos, U of Calif |
| Jahr: | 1953 |
| Ort: | USA |
| Quelle(n): | Produced by bombarding lighter transuranium elements with still lighter particles or by neutron capture. |
| Verwendung(en): | Keine signifikante kommerzielle Nutzung. |
| © 2000 Information | Fehlermeldung schicken | ChemGlobe |