Technetium (/ t ɛ k ˈ n iː ʃ i ə m /) is a chemical element with symbol Tc and atomic number 43. It is the element with the lowest atomic number in the periodic ...
Element Technetium (Tc), Group 7, Atomic Number 43, d-block, Mass . Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Technetium-99m is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99m Tc, that is used in tens of millions of medical ...
A red giant star. Technetium was once thought to exist only in samples produced in the laboratory. Its spectral lines have now been observed in red giant stars.
For a number of years there was a gap in the periodic table between molybdenum (element 42) and ruthenium (element 44). Many early researchers were eager to be the ...
technetium [tek-ne´she-um] a chemical element, atomic number 43, atomic weight 99, symbol Tc. (See Appendix 6.) technetium 99m the most frequently used radioisotope ...
What's in a name? From the Greek word for artificial, technetos. Say what? Technetium is pronounced as tek-NEE-she-em. History and Uses: Technetium was the first ...
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Technetium (IPA: /tɛkˈniʃɪəm/ or /tɛkˈniːʃɪəm/) is the lightest chemical element with no stable isotope. It has atomic number 43 and is given the symbol Tc.
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