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3,178 Isotope topics matching:
Filter this Collection| u | |||||
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| x name | x image | x Isotope of | x Mass number | x Mass | x article |
| x Mass (u) | |||||
| x Ununbium-277 | Ununbium | 277 | 277.16394 u | ||
| x Hydrogen-1 | Hydrogen | 1 | 1.00783 u | ||
| x Thorium-230 | Thorium | 230 | 230.03313 u |
Thorium-230 (Th) is a radioactive isotope of thorium which can be used to date corals and determine ocean current flux. Ionium was a name given early in the study of radioactive elements to the Th isotope produced in the decay chain of U before it...
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| x Americium-242 | Americium | 242 | 242.05955 u | ||
| x Americium-243 | Americium | 243 | 243.06138 u |
Americium-243 is a radioactive isotope of americium having 95 electrons and protons and 148 neutrons and has a mass of 243.06138 g/mol.
It has a half-life of 7370 years, hence it is not found in nature. It is formed in the nuclear fuel cycle by...
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| x Plutonium-241 | Plutonium | 241 | 241.05685 u |
Plutonium-241 (Pu-241) is an isotope of plutonium formed when plutonium-240 captures a neutron. Like Pu-239 but unlike Pu, Pu is fissile, with a neutron absorption cross section about 1/3 greater than Pu, and a similar probability of fissioning on...
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| x Uranium-236 | Uranium | 236 | 236.04557 u | ||
| x Uranium-234 | Uranium | 234 | 234.04095 u |
Uranium-234 is an isotope of Uranium. In natural uranium and uranium ore, U occurs as an indirect decay product of U, but it makes up only 0.0055% of the raw uranium because its half-life of just 246,000 years is only about 1/18,000 as long as the...
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| x Thorium-232 | Thorium | 232 | 232.03806 u |
Thorium-232 is the primary abundant nuclide of thorium. It is a slightly unstable radionuclide that is found in the earth's crust. It is a fertile material able to absorb a neutron and undergo transmutation into a nuclide that is able to support...
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| x Plutonium-239 | Plutonium | 239 | 239.05216 u | ||
| x Plutonium-238 |
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Plutonium | 238 | 238.04956 u |
Plutonium-238, is a radioactive isotope of plutonium with a half-life of 87.7 years. Because it is a very powerful alpha emitter, this isotope is used for radioisotope thermoelectric generators and radioisotope heater units. One gram of plutonium...
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| x Uranium-235 |
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Uranium | 235 | 235.04393 u |
Uranium-235 is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238 it is fissile, i.e. it can sustain fission chain reaction. It is the only fissile isotope that is a primordial nuclide or found...
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| x Uranium-238 |
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Uranium | 238 | 238.05079 u | |
| x Uranium-232 | Uranium | 232 | 232.03716 u |
Uranium 232 (23292U140, U, U-232) is an isotope of uranium. It has a half life of 68.9 years and is a side product in the thorium cycle. It has been cited as an obstacle to nuclear proliferation using U as the fissile material, because the intense...
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| x Hydrogen-6 | Hydrogen | 6 | 6.04494 u | ||
| x Hydrogen-7 | Hydrogen | 7 | 7.05275 u | ||
| x Uranium-233 | Uranium | 233 | 233.03964 u |
Uranium-233 is a fissile artificial isotope of uranium, which has been used in a few nuclear reactors and has been proposed for much wider use as a nuclear fuel. It has a half-life of 160,000 years.
Uranium-233 is produced by the neutron irradiation...
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| x Plutonium-240 | Plutonium | 240 | 240.05381 u | ||
| x Deuterium |
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Hydrogen | 2 | 2.0141 u |
Deuterium, also called heavy hydrogen, is a stable isotope of hydrogen with a natural abundance in the oceans of Earth of approximately one atom in 6,500 of hydrogen (~154Â ppm). Deuterium thus accounts for approximately 0.015% (alternately, on a...
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| x Carbon-13 | Carbon | 13 | 13.00335 u |
Carbon-13 (C) is a natural, stable isotope of carbon and one of the environmental isotopes. It makes up about 1.1% of all natural carbon on Earth.
Because of its nuclear spin properties, this isotope responds to a resonant radio frequency (RF)...
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| x Carbon-14 | Carbon | 14 | 14.00324 u | ||
| x Uranium-241 |
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Uranium | 241 | 241.06033 u |
Uranium-241 is an isotope of Uranium with a half life of approximately 5 minutes.
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| x Helium-3 | Helium | 3 | 3.01603 u |
Helium-3 (He-3) is a light, non-radioactive isotope of helium with two protons and one neutron. It is rare on Earth, and is sought for use in nuclear fusion research. The abundance of helium-3 is thought to be greater on the Moon (embedded in the...
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| x Helium-4 | Helium | 4 | 4.0026 u | ||
| x Lithium-7 | Lithium | 7 | 7.016 u | ||
| x Lithium-6 | Lithium | 6 | 6.01512 u | ||
| x Beryllium-9 | Beryllium | 9 | 9.01218 u | ||
| x Beryllium-7 | Beryllium | 7 | 7.01693 u | ||
| x Beryllium-10 | Beryllium | 10 | 10.01353 u | ||
| x Boron-11 | Boron | 11 | 11.00931 u | ||
| x Boron-10 | Boron | 10 | 10.01294 u | ||
| x Nitrogen-16 | Nitrogen | 16 | 16.0061 u | ||
| x Nitrogen-15 | Nitrogen | 15 | 15.00011 u |
Nitrogen-15 is a stable, non-radioactive isotope of nitrogen. It is often used in agricultural and medical research. Nitrogen-15 is frequently used in nuclear magnetic resonance spectroscopy (NMR), because unlike the more abundant nitrogen-14, it...
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| x Nitrogen-14 | Nitrogen | 14 | 14.00307 u |
Nitrogen-14 is one of two stable (non-radioactive) isotopes of the chemical element nitrogen, making up 99.636% of natural nitrogen.
It is one of the few stable nuclides with both an odd number of protons and neutrons (7 each) each of which...
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| x Nitrogen-13 | Nitrogen | 13 | 13.00574 u | ||
| x Oxygen-15 | Oxygen | 15 | 15.00307 u | ||
| x Oxygen-16 | Oxygen | 16 | 15.99491 u | ||
| x Oxygen-17 | Oxygen | 17 | 16.99913 u | ||
| x Oxygen-18 | Oxygen | 18 | 17.99916 u |
Oxygen-18 (O) is a natural, stable isotope of oxygen and one of the environmental isotopes.
O is an important precursor for the production of fluorodeoxyglucose (FDG) used in positron emission tomography (PET). Generally, in the radiopharmaceutical...
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| x Argon-38 | Argon | 38 | 37.96273 u | ||
| x Argon-39 | Argon | 39 | 38.96431 u | ||
| x Argon-40 | Argon | 40 | 39.96238 u | ||
| x Argon-41 | Argon | 41 | 40.9645 u | ||
| x Argon-36 | Argon | 36 | 35.96755 u | ||
| x Argon-37 | Argon | 37 | 36.96678 u | ||
| x Argon-42 | Argon | 42 | 41.96305 u | ||
| x Selenium-77 | Selenium | 77 | 76.91991 u | ||
| x Selenium-76 | Selenium | 76 | 75.91921 u | ||
| x Selenium-79 | Selenium | 79 | 78.9185 u | ||
| x Selenium-78 | Selenium | 78 | 77.91731 u | ||
| x Selenium-81 | Selenium | 81 | 80.91799 u | ||
| x Selenium-80 | Selenium | 80 | 79.91652 u | ||
| x Selenium-72 | Selenium | 72 | 71.92711 u | ||
| x Selenium-82 | Selenium | 82 | 81.9167 u | ||
| x Selenium-75 | Selenium | 75 | 74.92252 u | ||
| x Selenium-74 | Selenium | 74 | 73.92248 u | ||
| x Xenon-134 | Xenon | 134 | 133.90539 u | ||
| x Xenon-133 | Xenon | 133 | 132.90591 u | ||
| x Xenon-132 | Xenon | 132 | 131.90415 u | ||
| x Xenon-131 | Xenon | 131 | 130.90508 u | ||
