What are properties of technetium?
technetium
| atomic number | 43 |
|---|---|
| melting point | 2,172° C (3,942° F) |
| boiling point | 4,877° C (8,811° F) |
| specific gravity | 11.5 (20° C) |
| oxidation states | +4, +6, +7 |
What are the uses of technetium?
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 are the properties of this element?
All elements have properties. Those properties include, but are not limited to, conductivity, magnetism, melting point, boiling point, color, state of matter, and others. Elements with similar properties are grouped together in different areas of the periodic table of elements.
What are the unusual properties of technetium?
Technetium dissolves in nitric acid, aqua regia, and conc. sulfuric acid, but is not soluble in hydrochloric acid of any strength. The element is a remarkable corrosion inhibitor for steel. The metal is an excellent superconductor at 11K and below.
Why is technetium element important?
The gamma-ray emitting technetium-99m (metastable) is widely used for medical diagnostic studies. Several chemical forms are used to image different parts of the body. Technetium is a remarkable corrosion inhibitor for steel, and adding very small amounts can provide excellent protection.
Who synthesized technetium and what he used?
Technetium was the first artificially produced element. It was isolated by Carlo Perrier and Emilio Segrè in 1937. Technetium was created by bombarding molybdenum atoms with deuterons that had been accelerated by a device called a cyclotron. Today, technetium is produced by bombarding molybdenum-98 with neutrons.
How can properties be used to identify elements?
Identifying Elements : Example Question #5 There are two properties that can be used to identify an element: the atomic number or the number of protons in an atom. The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question.
What are examples of properties of elements?
These properties include color, density, melting point, boiling point, and thermal and electrical conductivity. While some of these properties are due chiefly to the electronic structure of the element, others are more closely related to properties of the nucleus, e.g., mass number.
Can technetium dissolve in water?
Technetium metal does dissolve in warm bromine water.
What is promethium used for?
The radioactive decay of promethium is used to make a phosphor give off light and this light is converted into electricity by a solar cell. Promethium can also be used as a source of x-rays and radioactivity in measuring instruments. Promethium has no known biological role.
What type of element is technetium?
metal
Technetium is a chemical element with the symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive, none of which is stable other than the fully ionized state of 97Tc….
| Technetium | |
|---|---|
| Appearance | shiny gray metal |
| Mass number | [97] |
| Technetium in the periodic table |
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 |
Which are elements woukd you expect to be similar to technetium?
In similar fashion to rhenium, immediately below technetium in the periodic table, technetium is often supplied as a powder or as a sponge, and in this form it is quite more reactive.
Is technetium a metal or a nonmetal?
Technetium is a silvery-gray radioactive metal with an appearance similar to platinum, commonly obtained as a gray powder. The crystal structure of the pure metal is hexagonal close-packed.
What are two characteristics of technetium?
Two characteristics of Technetium: 1) Technetium is a rare, silver-gray metal that tarnishes slowly in moist air. 2)In powder form, it burns in oxygen to form the heptoxide (Tc2O7) Two characteristics of Tungsten : 1)Tungsten is a very hard, dense, silvery-white.
What elements does technetium bond with?
Technetium forms a variety of compounds with Tc–C bonds, i.e. organotechnetium complexes. Prominent members of this class are complexes with CO, arene, and cyclopentadienyl ligands. The binary carbonyl Tc 2(CO) 10 is a white volatile solid.