Technetium is a chemical element; it has symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive. Technetium and promethium are the only radioactive elements whose neighbours in the sense of atomic number are both stable.

Technetium is a chemical element with symbol Tc and atomic number 43. Classified as a transition metal, Technetium is a solid at room temperature.

Nov 1, 2020 · Technetium is a transition metal element with atomic number 43 and element symbol Tc. It is the lightest radioactive element. Traces of technetium occur naturally, but it was discovered through synthesis in a lab and was the first artificial element.

Its symbol is Tc. Technetium occur in nature in very minute concentrations, around 0.003 parts per trillion of the earth’s crust. It is highly unstable nature and have a half-life of around 4.2 million years, which shows the probability that not even one …

What is Technetium. A radioactive metal, technetium (pronounced as tek-NEE-she-em) is the first synthetically produced element. Denoted by the chemical symbol Tc, it belongs to the family of transition metals [1].

Oct 14, 2021 · 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 …

Technetium (Tc) is a chemical element in the periodic table with atomic number 43. It is a silvery-grey radioactive metal which looks similar to platinum. The metals name is derived from the Greek word Tekhnetos which means artificial. The metal is the lightest element that has all isotopes as radioactive and none are stable.

Technetium is the only element below uranium that does not exist on Earth. It is a synthetic (man-made) element produced in a particle accelerator. For many years, chemists knew that an element with atomic number 43 must exist, based on an empty spot in the periodic table.

Technetium is the 43rd element in the periodic table and has a symbol of Tc and atomic number of 43. It has an atomic weight of (97.90721) and a mass number of 83. Technetium has forty-three protons and forty neutrons in its nucleus, and forty-three electrons in five shells.

Technetium - 99 is produced by bombarding molybdenum 98 Mo with neutrons. The resultant 99 Mo decays with a half-life of 66 hours to a metastable state of Tc designated technetium-99m . It is a short-lived radioisotope which finds wide application …