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| Darmstadtium | Darmstadtium | Darmstadtij | Darmstadtio | Darmstadtium | ||||||||||||||||||||
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Ds Darmstadtium |
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- Darmstadtium was discovered by S. Hofmann et al. collaboration at the Heavy Ion Research Laboratory (Gesellschaft für Schwerionenforschung, GSI) in Darmstadt, Germany in November 1994. The title honours the Laboratory for Heavy Ion Research (called GSI) in Darmstadt, Germany, where the substance was first made. It is synthetic radioactive metal.
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TRANSITION ELEMENT: NICKEL GROUP | |
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| Relative atomic mass: | [281] | Electronic configuration: | [Rn] 5f14 6d9 7s1 |
| Formal oxidation number: | Electronegativities: | - | |
| Thermal conductivity: | - W m-1 K-1 | Electrical resistivity (20 °C): | - μΩcm |
| Atomic radius: | - pm | Standard state (20 °C): | solid |
| Density (g dm-3): | - | Molar volume (cm3 mol-1): | - |
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THERMAL PROPERTIES | |
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| Melting point: | - °C | Heat of fusion: | - kJ mol-1 |
| Boiling point: | - °C | Heat of vaporization: | - kJ mol-1 |
| Critical temperature: | - °C | Heat of atomization: | - kJ mol-1 |
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IONIZATION ENERGIES AND ABUNDANCE | |
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| 1st ionization energy: | - kJ mol-1 | Abundance of element (air): | - ppm |
| 2nd ionization energy: | - kJ mol-1 | Abundance of element (Earth's crust): | - ppm |
| 3rd ionization energy: | - kJ mol-1 | Abundance of element (oceans): | - ppm |
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ISOTOPES | |
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Isotopes | Relative atomic mass | Abundance (%) |
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MINERALS AND USES | |
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- The fusion-evaporation reaction using a 62Ni beam on an isotopically enriched 208Pb target produced four chains of alpha-emitting nuclides following the presumed formation of 269110 + 1n.
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REDUCTION POTENTIALS | |
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Balanced half-reaction | Eo / V | Annotation |
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