What compound is technetium?
Technetium, chemically similar to rhenium (atomic number 75), exists in oxidation states of +7, +6, and +4 in compounds such as potassium pertechnetate, KTcO4, technetium chloride, TcCl6, and technetium sulfide, TcS2, respectively. Compounds are known in all formal oxidation states from −1 to +7.
What is technetium used for?
Technetium (Tc-99m) is an isotope commonly used in a number of medical diagnostic imaging scans. Tc99m is used as a radioactive tracer for nuclear medicine; which is a form of medical imaging that assesses how particular parts of our body are working or functioning.
What is the structure of technetium?
The nucleus consists of 43 protons (red) and 55 neutrons (blue). 43 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Technetium is a transition metal in group 7, period 5, and the d-block of the periodic table. It has a melting point of 2157 degrees Celsius.
What is the structure of technetium 99?
Technetium TC-99m is one of the radioactive isotopes of technetium, a gamma/beta-emitter with a half life of 6 hours. Technetium-99m is the metastable isotope of technetium. It is commonly symbolized as 99mTc and used in the area of medical diagnosis….4.3Related Element.
| Element Name | Technetium |
|---|---|
| Atomic Number | 43 |
Is technetium paramagnetic or diamagnetic?
Magnetic Type of the elements
| Hydrogen | Diamagnetic | Niobium |
|---|---|---|
| Helium | Diamagnetic | Molybdenum |
| Lithium | Paramagnetic | Technetium |
| Beryllium | Diamagnetic | Ruthenium |
| Boron | Diamagnetic | Rhodium |
What does technetium look like?
Technetium is a silvery-gray radioactive metal with an appearance similar to platinum, commonly obtained as a gray powder. The crystal structure of the bulk pure metal is hexagonal close-packed.
What is the first artificial element?
technetium
This revelation would eventually lead to the development of nuclear weapons — and meant that Segrè and Perrier’s eka-manganese was the first true synthetic element. In 1947, ten years after its discovery, they named it technetium, after ‘technetos’, the Greek word for ‘artificial’7.
Who discovered technetium?
Emilio Segrè
Carlo Perrier
Technetium/Discoverers
Claims in the 1920s to have found this element, or at least to have observed its spectrum, cannot be entirely discounted. Technetium was discovered by Emilio Segrè in 1937 in Italy.
What is the color of technetium?
silvery-gray
Technetium is a silvery-gray radioactive metal with an appearance similar to platinum, commonly obtained as a gray powder.
Is technetium a metalloid?
The color of technetium is silvery-grey and is a crystaline metal. In chemistry it is placed in a group of metal elements named the transition metals.
Where do you find technetium?
Some scientists believe that technetium will be found in very small amounts in the Earth’s crust along with other radioactive materials, such as uranium and radium. However, it has never been found on Earth. It has, however, been found in certain types of stars.
Why is technetium synthetic?
Technetium can only be produced artificially because most forms or isotopes of it (atoms of the same chemical element with different numbers of neutrons) have an excess of neutrons, making it very unstable. Unstable elements undergo radioactive decay into stable elements.
What kind of compounds are found in technetium?
Technetium: compounds information 1 Hydrides. The term hydride is used to indicate compounds of the type MxHyand not necessarily to indicate that any compounds listed behave as hydrides chemically. 2 Fluorides 3 Chlorides 4 Bromides 5 Iodides 6 Oxides 7 Sulfides 8 Selenides 9 Tellurides 10 Nitrides
What is the half life of technetium m?
Technetium has the atomic symbol Tc, and atomic number 43. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m,…
Can you use technetium as a corrosion inhibitor?
Technetium is a very good corrosion inhibitor for steel, and protection can be achieved by adding only very small amounts during production. However, this use is limited by the radioactive nature of technetium.
