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Naturally occurring terbium (65 Tb) is composed of one stable isotope, 159 Tb. Thirty-seven radioisotopes have been characterized, with the most stable being 158 Tb with a half-life of 180 years, 157 Tb with a half-life of 71 years, and 160 Tb with a half-life of 72.3 days. All of the remaining radioactive isotopes have half-lives that are less ...
Terbium is a chemical element; it has the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable and ductile. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. Terbium is never found in nature as a free element, but it is ...
Pages in category "Isotopes of terbium" ... Terbium-171 This page was last edited on 29 March 2013, at 21:29 (UTC). Text is available under the Creative ...
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds. [1]
Isotopes of terbium (38 P) Pages in category "Terbium" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. ...
Most stable known isotope has half-life of 9.6 seconds. 111: Rg: Roentgenium (28.7) 0: Not traded. Only produced in experiments on a per-atom basis. [73] Most stable known isotope has half-life of 2.1 minutes. 112: Cn: Copernicium (14.0) 0: Not traded. Only tens of atoms have been produced in experiments. [72] Most stable known isotope has half ...
Naturally occurring dysprosium (66 Dy) is composed of 7 stable isotopes, 156 Dy, 158 Dy, 160 Dy, 161 Dy, 162 Dy, 163 Dy and 164 Dy, with 164 Dy being the most abundant (28.18% natural abundance). Twenty-nine radioisotopes have been characterized, with the most stable being 154 Dy with a half-life of 1.4 million years, 159 Dy with a half-life of ...
Isotopes of gadolinium (64Gd) Naturally occurring gadolinium (64 Gd) is composed of 6 stable isotopes, 154 Gd, 155 Gd, 156 Gd, 157 Gd, 158 Gd and 160 Gd, and 1 radioisotope, 152 Gd, with 158 Gd being the most abundant (24.84% natural abundance). The predicted double beta decay of 160 Gd has never been observed; only a lower limit on its half ...