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What is technetium classification?
Technetium is a chemical element with symbol Tc and atomic number 43. Classified as a transition metal, Technetium is a solid at room temperature.
What is the element in Group 7 Period 2?
halogens
The Group 7 elements are called the halogens. They are placed in the vertical column, second from the right, in the periodic table . Chlorine, bromine and iodine are the three common Group 7 elements….Properties and uses of the halogens.
| Element | Properties | Typical use |
|---|---|---|
| Iodine | Grey solid | Sterilising wounds |
Is technetium a main group element?
Group 7, numbered by IUPAC nomenclature, is a group of elements in the periodic table. They are manganese (Mn), technetium (Tc), rhenium (Re), and bohrium (Bh). All known elements of group 7 are transition metals….Group 7 element.
| Hydrogen | Francium |
|---|---|
| Radium | |
| Lawrencium | |
| Rutherfordium | |
| Dubnium |
What group and period is manganese in?
Group 7
Fact box
| Group | 7 | Melting point |
|---|---|---|
| Period | 4 | Boiling point |
| Block | d | Density (g cm−3) |
| Atomic number | 25 | Relative atomic mass |
| State at 20°C | Solid | Key isotopes |
What is technetium used for in medicine?
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.
Where can 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.
Which element is in period 3 group 17?
Chlorine
Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is commonly found in nature bonded to many different elements.
What period is RB in?
5
Fact box
| Group | 1 | 39.30°C, 102.74°F, 312.45 K |
|---|---|---|
| Period | 5 | 688°C, 1270°F, 961 K |
| Block | s | 1.53 |
| Atomic number | 37 | 85.468 |
| State at 20°C | Solid | 85Rb, 87Rb |
What do you need to know about technetium?
Technetium is a transition metal element. Know everything about Technetium Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure. Technetium (/tɛkˈniːʃiəm/) is a chemical element with symbol Tc and atomic number 43.
What is the atomic number of technetium H?
Technetium. Technetium is a chemical element with symbol Tc and atomic number 43. Classified as a transition metal, Technetium is a solid at room temperature. H.
Where does the metal technetium 99 come from?
Technetium (chemical symbol Tc) is a silver-gray, radioactive metal. It occurs naturally in very small amounts in the earth’s crust, but is primarily man-made. Technetium-99 is produced during nuclear reactor operation, and is a byproduct of nuclear weapons explosions.
Who was the first person to discover technetium?
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. He investigated molybdenum from California which had been exposed to high energy radiation and he found technetium to be present and separated it.