What is erbium-169 used for?
What is erbium-169 used for?
Erbium-169 reduces inflammation and leads to progressive articular fibrosis. Any chronic synovitis of interdigital joints resistant to appropriate conventional anti-inflammatory treatment may benefit from radio-synoviorthesis with erbium-169.
What element has a mass number of 169?
Thulium-169 is thulium’s only primordial isotope and is the only isotope of thulium that is thought to be stable; it is predicted to undergo alpha decay to holmium-165 with a very long half-life.
How is erbium-169 produced?
Erbium-169 is currently produced by neutron irradiation of highly-enriched (98.2%) 168Er2O3 targets in nuclear reactors. In this way, it can only be produced with low specific activity in the carrier-added form due to the relatively low neutron capture cross-section of 168Er (σ: 2.3 barn) (10).
How many neutrons are in Er 177?
| Name | Erbium |
|---|---|
| Number of Neutrons | 99 |
| Number of Electrons | 68 |
| Melting Point | 1522.0° C |
| Boiling Point | 2510.0° C |
What is the half life of erbium?
Their mass varies from 142 to 177. All the radioactive isotopes of erbium are relatively unstable: their half-lives range from 1 second (erbium-145) to 9.4 days (erbium-169).
Is Darmstadtium radioactive?
Darmstadtium is highly radioactive, so the image is based on an abstracted atomic model and trails of sub-atomic particles. A highly radioactive metal, of which only a few atoms have ever been made. At present, it is only used in research.
What is the element 69?
Thulium
Thulium is a chemical element with symbol Tm and atomic number 69. Classified as a lanthanide, Thulium is a solid at room temperature.
Who found erbium?
Carl Gustaf Mosander
Erbium/Discoverers
The element was discovered in 1842 as an oxide by Carl Gustaf Mosander, who originally called it terbia; in the confusion arising from the similarity in the properties of the rare-earth elements, the names of two, terbium and erbium, became interchanged (c.
What is the element 71?
Lutetium
Lutetium is a chemical element with symbol Lu and atomic number 71. Classified as a lanthanide, Lutetium is a solid at room temperature.
What is the hourly decay rate?
1 Expert Answer This means that after each hour, you are left with 0.70711 times the amount at the start of the hour, which is 70.711%. Therefore, each hour it decays by (100 – 70.711)% = 29.289%.
Why is darmstadtium called darmstadtium?
Darmstadtium was to get its name after the location of the Gesellschaft für Schwerionenforschung, roughly translating as the ‘centre for heavy ion research’. In 1994, at the GSI, an international team slammed high energy nickel ions into a lead target.
Where is darmstadtium found on Earth?
Darmstadtium Element Facts It was discovered in 1994 by research scientists at the Heavy Ion Research Laboratory in Darmstadt, Germany.