- beta-minus decay radioisotope
- Макаров: бета-минус активный изотоп
Универсальный англо-русский словарь. Академик.ру. 2011.
beta-minus decay radioisotope
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radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… … Universalium
Promethium — (pronEng|prəˈmiːθiəm/, /proʊˈmiːθiəm) is a chemical element with the symbol Pm and atomic number 61. It is notable for being the only other exclusively radioactive element besides technetium which is followed by chemical elements that have stable … Wikipedia
Europium — (pronEng|jʊˈroʊpiəm) is a chemical element with the symbol Eu and atomic number 63. It was named after the continent Europe. Characteristics Europium is the most reactive of the rare earth elements; it rapidly oxidizes in air, and resembles… … Wikipedia
Isotopes of europium — Naturally occurring europium is composed of 2 isotopes, 151Eu and 153Eu, with 153Eu being the most abundant (52.2% natural abundance). While 153Eu is stable, 151Eu was recently found to be unstable to alpha decay with half life of 5 { 3}^{+11}… … Wikipedia
Isotopes of dysprosium — Naturally occurring dysprosium (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). 28 radioisotopes have been characterized, with the… … Wikipedia
Isotopes of terbium — Naturally occurring terbium (Tb) is composed of 1 stable isotope, 159 Tb. 33 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… … Wikipedia
Isotopes of samarium — Naturally occurring samarium (Sm) is composed of 4 stable isotopes, 144Sm, 150Sm, 152Sm and 154Sm, and 3 extremely long lived radioisotopes, 147Sm (1.06e|11y), 148Sm (7e|15y) and 149Sm (>2e|15y), with 152Sm being the most abundant (26.75% natural … Wikipedia
Isotopes of promethium — 36 radioisotopes of promethium (Pm) have been characterized, with the most stable being 145Pm with a half life of 17.7 years, 146Pm with a half life of 5.53 years, and 147Pm with a half life of 2.6234 years. All of the remaining radioactive… … Wikipedia
Isotopes of praseodymium — Naturally occurring praseodymium (Pr) is composed of one stable isotope, 141Pr. Thirty eight radioisotopes have been characterized with the most stable being 143Pr with a half life of 13.57 days and 142Pr with a half life of 19.12 hours. All of… … Wikipedia
Dysprosium — (pronEng|dɪsˈproʊziəm) is a chemical element with the symbol Dy and atomic number 66. Characteristics Dysprosium is a rare earth element that has a metallic, bright silver luster, relatively stable in air at room temperature, but dissolving… … Wikipedia
Terbium — (pronEng|ˈtɝbiəm) is a chemical element with the symbol Tb and atomic number 65. Characteristics Terbium is a silvery white rare earth metal that is malleable, ductile and soft enough to be cut with a knife. It is reasonably stable in air (it… … Wikipedia
