Technetium (43Tc) is one of the two elements with Z < 83 that have no stable isotopes; the other such element is promethium. It is primarily artificial...

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...

Technetium-99m (99mTc) is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99mTc, that is used in tens of...

Technetium-99 (99Tc) is an isotope of technetium which decays with a half-life of 211,000 years to stable ruthenium-99, emitting beta particles, but no...

All unstable isotopes of molybdenum decay into isotopes of zirconium, niobium, technetium, and ruthenium. Molybdenum-100, with a half-life of approximately...

in nature, was technetium in 1937. This discovery filled a gap in the periodic table, and the fact that technetium has no stable isotopes explains its natural...

Stable nuclide Stable isotope ratio Table of nuclides See Stability of technetium isotopes and Stability of promethium isotopes for a detailed discussion...

parent isotopes in a nuclear reactor (for example, technetium-97 can be made by neutron irradiation of ruthenium-96) or by bombarding parent isotopes with...

hazardous gaseous isotopes after iodine-131 in case of release by a nuclear accident. The two most important isotopes of ruthenium in case of nuclear accident...

usual isotopes for such studies are either thallium-201 or technetium-99m. The history of nuclear cardiology began in 1927 when Dr. Herrmann Blumgart...

isomers. Among other isotopes: astatine-210 and the lighter isotopes decay by positron emission; astatine-217 and the heavier isotopes undergo beta decay;...

lines of the light radioactive metal technetium. The most stable isotope of technetium is 97Tc with a half-life of 4.21 million years, which is too short...

heavier isotopes is beta decay. The primary decay products before 146Pm are isotopes of neodymium, and the primary products after are isotopes of samarium...

A technetium-99m generator, or colloquially a technetium cow or moly cow, is a device used to extract the metastable isotope 99mTc of technetium from a...

The majority of radiopharmaceuticals are based on proton deficient isotopes, with technetium-99m being the most commonly used medical isotope, and therefore...

usually called that element's stable isotopes. The 80 elements with one or more stable isotopes comprise a total of 251 nuclides that have not been shown...

SPECT scans and technetium scans. Radiocarbon dating uses the naturally occurring carbon-14 isotope as an isotopic label. Isotopes of a chemical element...

this star include technetium and promethium. While the longest-lived known isotopes of technetium have half-lives in the millions of years, the longest-lived...

Natural palladium (46Pd) is composed of six stable isotopes, 102Pd, 104Pd, 105Pd, 106Pd, 108Pd, and 110Pd, although 102Pd and 110Pd are theoretically unstable...

stable isotopes have come into use. Radioactive isotopes are used in medicine for both treatment and diagnostic scans. The most common isotope used in...

This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days...

contains technetium, one of the two elements until lead that has no stable isotopes (along with promethium), as well as molybdenum and iodine, two of the heaviest...

is the kinetic isotope effect: due to their larger masses, heavier isotopes tend to react somewhat more slowly than lighter isotopes of the same element...

longer-lived than others (nuclear isomers of the same isotope), e.g. technetium-99m. The isotope tantalum-180m, although being a metastable excited state...

Segrè paid a summer visit to California to study the short-lived isotopes of technetium, which did not survive being mailed to Italy. While Segrè was en...

1871, and the most stable isotope of technetium is 98Tc. Germanium was isolated in 1886 and provided the best confirmation of the theory up to that time...

Radiopharmaceuticals, or medicinal radiocompounds, are a group of pharmaceutical drugs containing radioactive isotopes. Radiopharmaceuticals can be used as diagnostic...

in the decay chain of the primordial isotopes thorium-232, uranium-238, and uranium-235. Examples include the natural isotopes of polonium and radium...

group of elements in the periodic table. It contains manganese (Mn), technetium (Tc), rhenium (Re) and bohrium (Bh). This group lies in the d-block of the...

shorter-lived nuclides have been detected in the spectra of stars, such as isotopes of technetium, promethium, and some actinides. The remaining nuclides...