Table of Contents
- 1 What is the classification of technetium?
- 2 Which element is classified as a noble gas?
- 3 What state of matter is technetium in?
- 4 Which element is not classified as a noble gas?
- 5 Who synthesized technetium and what he used?
- 6 What is technetium in the periodic table of elements?
- 7 How is the electron affinity of technetium determined?
What is the classification of technetium?
transition metal
Technetium is a chemical element with symbol Tc and atomic number 43. Classified as a transition metal, Technetium is a solid at room temperature.
Which element is classified as a noble gas?
noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
What group does technetium belong to?
Group 7
technetium (Tc), chemical element, synthetic radioactive metal of Group 7 (VIIb) of the periodic table, the first element to be artificially produced.
What are the characteristics of technetium?
Characteristics: Technetium is a rare, silver-gray metal that tarnishes slowly in moist air. In powder form, it burns in oxygen to form the heptoxide (Tc2O7). Technetium dissolves in nitric acid and concentrated sulfuric acid, but is not soluble in hydrochloric acid of any strength.
What state of matter is technetium in?
Technetium is a chemical element with symbol Tc and atomic number 43. Classified as a transition metal, Technetium is a solid at room temperature.
Which element is not classified as a noble gas?
Nitrogen (N2) might be considered an inert gas, but it is not a noble gas. The noble gases are another family of elements, and all of them are located in the far right column of the periodic table.
Which element is classified as a noble gas Brainly?
Xenon is classified as a noble gas due to its completely filled p orbital .
What technetium is 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.
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.
What is technetium in the periodic table of elements?
Technetium – Periodic Table Element Technetium Atomic Number 43 Symbol Tc Element Category Transition Metal Phase at STP Synthetic
What kind of electron shells does a noble gas have?
Like other groups, the members of this family show patterns in its electron configuration, especially the outermost shells resulting in trends in chemical behavior: The noble gases have full valence electron shells. Valence electrons are the outermost electrons of an atom and are normally the only electrons that participate in chemical bonding.
What is the mass and density of technetium?
Electron configuration of Technetium is [Kr] 4d5 5s2. Possible oxidation states are +4,7. Density of Technetium is 11.5g/cm3. Typical densities of various substances are at atmospheric pressure. Density is defined as the mass per unit volume.
How is the electron affinity of technetium determined?
Electron affinity of Technetium is 53 kJ/mol. In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as: the change in energy (in kJ/mole) of a neutral atom or molecule (in the gaseous phase) when an electron is added to the atom to form a negative ion.