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Isotopes of lutetium
Lutetium - 3D Elements
Naturally occurring lutetium 71 Lu is composed of one stable isotope Lu Thirty-four radioisotopes have been characterized, with the most stable, besides Lu, being Lu with a half-life of 3. All of the remaining radioactive isotopes have half-lives that are less than 9 days, and the majority of these have half-lives that are less than half an hour. The isotopes of lutetium range in atomic weight from The primary decay mode before the most abundant stable isotope, Lu, is electron capture with some alpha and positron emission , and the primary mode after is beta emission. The primary decay products before Lu are isotopes of ytterbium and the primary products after are isotopes of hafnium.
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Lutetium is a silvery-white metallic element of the lanthanide series that is used in nuclear technology. It is the last element in the lanthanide series, and it is traditionally counted among the rare earths. Its atomic number 71; atomic weight Its radioactive isotope is used in determining the age of meteorites.