Technetium Informationen, einschließlich Technische Daten, Safety Data und seine Eigenschaften, Forschung, Anwendungen und andere nützliche Fakten sind erörtert werden. Wissenschaftliche Fakten, wie die atomare Struktur, Ionisierungenergie, Fülle auf der Erde, Leitfähigkeit und thermischen Eigenschaften sind im Preis inbegriffen.
Technetium ist ein Block D, Gruppe 7, Periode 5 Element. Die elektronische Konfiguration ist [Kr] 4d5 5s2. In seiner elementaren Form Technetium's CAS-Nummer ist 7440-26-8. Die Technetium Atom hat einen Radius von 135.2.pm und es ist, Van der Waals Radius ist 200.pm.
Technetium entdeckt wurde von Carlo Perrier und Emilio Segre 1937. Technetium Abundance. The following table shows the abundance of
Technetium and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope. |
technétium
Technetium
tecneto
Tecnécio
tecnecio
TeknetiumIsotope |
Atomic Mass |
% Abundance on Earth |
Tc-98 |
97.907216 |
- |
Tc-99 |
98.906255 |
- |
Technetium Safety Data.
The safety data for Technetium metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin.
Ionisation Energie. Die Ionisierungenergie für Technetium (die am wenigsten Energie benötigt, um ein einzelnes Elektron aus dem Atom in seinem Grundzustand in der Gasphase) ist in der folgenden Tabelle dargestellt: |
1st Ionization Energy |
702.42 kJ mol-1 |
2nd Ionization Energy |
702.42 kJ mol-1 |
3rd Ionization Energy |
2850.20 kJ mol-1 |
Conductivity. As to
Technetium's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @
20 ºC is 16.9 µOcm and its electronegativities (or its ability to draw electrons relative to other elements) is
2.1. The thermal conductivity of
Technetium is 50.6 W m-1 K-1.
Thermal Properties of Technetium. The melting point and boiling point for Technetium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization. |
Heat of Fusion |
23.81 kJ mol-1 |
Heat of Vaporization |
585.22 kJ mol-1 |
Heat of Atomization |
678 kJ mol-1 |
| Formula | Atomic Number | Molecular Weight | Electronegativity (Pauling) | Density | Melting Point | Boiling Point |
Vanderwaals radius |
Ionic radius | Energy of first ionization |
| Tc | 43 | [98](0) g.mol -1 | 2.1 | 11 g·cm−3 | 2157 °C | 4265 °C | .200 nm | - pm | 702.42 kJ.mol-1 |
| PRODUCT CATALOG | German Operations | Submicron & Nanopowder | Tolling | Ultra High Purity | Sputtering Target | Crystal Growth | Rod, Plate, Powder, etc. | Foil |
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