56 relations: Actinide, Alpha decay, Americium-241, Beta decay, Brookhaven National Laboratory, Cluster decay, CRC Handbook of Chemistry and Physics, CRC Press, Critical mass, Decay chain, Decay energy, Decay product, Electron capture, Fissile material, Half-life, Isotope, Isotopes of lead, Isotopes of neptunium, Isotopes of plutonium, Isotopes of protactinium, Isotopes of thallium, Isotopes of uranium, John Wiley & Sons, Mars Science Laboratory, National Nuclear Data Center, Neptunium, Neutron, Neutron capture, Neutron temperature, New Horizons, Nuclear fallout, Nuclear fuel cycle, Nuclear isomer, Nuclear Physics (journal), Nuclear weapon, Nuclide, Proton, Pure and Applied Chemistry, Radioactive decay, Radioisotope thermoelectric generator, Radionuclide, Relative atomic mass, Science News, Spent nuclear fuel, Spontaneous fission, Stable isotope ratio, Standard atomic weight, Subcritical reactor, Synthetic element, Unified atomic mass unit, ..., Uranium, Uranium-235, Uranium-236, Uranium-238, Voyager program, Yucca Mountain nuclear waste repository. Expand index (6 more) » « Shrink index
The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into an atom with a mass number that is reduced by four and an atomic number that is reduced by two.
Americium-241 (241Am) is an isotope of americium.
In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which a beta ray (fast energetic electron or positron) and a neutrino are emitted from an atomic nucleus.
Brookhaven National Laboratory (BNL) is a United States Department of Energy national laboratory located in Upton, New York, on Long Island, and was formally established in 1947 at the site of Camp Upton, a former U.S. Army base.
Cluster decay, also named heavy particle radioactivity or heavy ion radioactivity, is a type of nuclear decay in which an atomic nucleus emits a small "cluster" of neutrons and protons, more than in an alpha particle, but less than a typical binary fission fragment.
The CRC Handbook of Chemistry and Physics is a comprehensive one-volume reference resource for science research, currently in its 98th edition (with 2560 pages, June 23, 2017, Editor-in-Chief John R. Rumble).
The CRC Press, LLC is a publishing group based in the United States that specializes in producing technical books.
A critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction.
In nuclear science, the decay chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations.
The decay energy is the energy released by a radioactive decay.
In nuclear physics, a decay product (also known as a daughter product, daughter isotope, radio-daughter, or daughter nuclide) is the remaining nuclide left over from radioactive decay.
Electron capture (K-electron capture, also K-capture, or L-electron capture, L-capture) is a process in which the proton-rich nucleus of an electrically neutral atom absorbs an inner atomic electron, usually from the K or L electron shell.
In nuclear engineering, fissile material is material capable of sustaining a nuclear fission chain reaction.
Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half its initial value.
Isotopes are variants of a particular chemical element which differ in neutron number.
Lead (82Pb) has four stable isotopes: 204Pb, 206Pb, 207Pb, 208Pb.
Neptunium (93Np) is usually considered an artificial element, although trace quantities are found in nature, so thus a standard atomic weight cannot be given.
Plutonium (94Pu) is an artificial element, except for trace quantities resulting from neutron capture by uranium, and thus a standard atomic weight cannot be given.
Protactinium (91Pa) has no stable isotopes.
Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212.
Uranium (92U) is a naturally occurring radioactive element that has no stable isotopes but two primordial isotopes (uranium-238 and uranium-235) that have long half-life and are found in appreciable quantity in the Earth's crust, along with the decay product uranium-234.
John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.
Mars Science Laboratory (MSL) is a robotic space probe mission to Mars launched by NASA on November 26, 2011, which successfully landed Curiosity, a Mars rover, in Gale Crater on August 6, 2012.
The National Nuclear Data Center is an organization based in the Brookhaven National Laboratory that acts as a repository for data regarding nuclear chemistry, such as nuclear structure, decay, and reaction data, as well as historical information regarding previous experiments and literature.
Neptunium is a chemical element with symbol Np and atomic number 93.
Neutron capture is a nuclear reaction in which an atomic nucleus and one or more neutrons collide and merge to form a heavier nucleus.
The neutron detection temperature, also called the neutron energy, indicates a free neutron's kinetic energy, usually given in electron volts.
New Horizons is an interplanetary space probe that was launched as a part of NASA's New Frontiers program.
Nuclear fallout, or simply fallout, is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and the shock wave have passed.
The nuclear fuel cycle, also called nuclear fuel chain, is the progression of nuclear fuel through a series of differing stages.
A nuclear isomer is a metastable state of an atomic nucleus caused by the excitation of one or more of its nucleons (protons or neutrons).
Nuclear Physics is a peer-reviewed scientific journal published by Elsevier.
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb).
A nuclide (from nucleus, also known as nuclear species) is an atomic species characterized by the specific constitution of its nucleus, i.e., by its number of protons Z, its number of neutrons N, and its nuclear energy state.
Pure and Applied Chemistry (abbreviated Pure Appl. Chem.) is the official journal for the International Union of Pure and Applied Chemistry (IUPAC).
Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.
A Radioisotope Thermoelectric Generator (RTG, RITEG) is an electrical generator that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.
A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.
Relative atomic mass (symbol: A) or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to one unified atomic mass unit.
Science News is an American bi-weekly magazine devoted to short articles about new scientific and technical developments, typically gleaned from recent scientific and technical journals.
Spent nuclear fuel, occasionally called used nuclear fuel, is nuclear fuel that has been irradiated in a nuclear reactor (usually at a nuclear power plant).
Spontaneous fission (SF) is a form of radioactive decay that is found only in very heavy chemical elements.
The term stable isotope has a meaning similar to stable nuclide, but is preferably used when speaking of nuclides of a specific element.
The standard atomic weight (Ar, standard, a relative atomic mass) is the atomic weight (Ar) of a chemical element, as appearing and met in the earthly environment.
A subcritical reactor is a nuclear fission reactor concept that produces fission without achieving criticality.
In chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially.
The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass).
Uranium is a chemical element with symbol U and atomic number 92.
Uranium-235 (235U) is an isotope of uranium making up about 0.72% of natural uranium.
Uranium-236 is an isotope of uranium that is neither fissile with thermal neutrons, nor very good fertile material, but is generally considered a nuisance and long-lived radioactive waste.
Uranium-238 (238U or U-238) is the most common isotope of uranium found in nature, with a relative abundance of 99%.
The Voyager program is an American scientific program that employs two robotic probes, Voyager 1 and Voyager 2, to study the outer Solar System.
The Yucca Mountain Nuclear Waste Repository, as designated by the Nuclear Waste Policy Act amendments of 1987, is to be a deep geological repository storage facility within Yucca Mountain for spent nuclear fuel and other high-level radioactive waste in the United States.
Neptunium 237, Neptunium-225, Neptunium-226, Neptunium-227, Neptunium-228, Neptunium-229, Neptunium-230, Neptunium-231, Neptunium-232, Neptunium-233, Neptunium-234, Neptunium-235, Neptunium-236, Neptunium-236m, Neptunium-237, Neptunium-238, Neptunium-239, Neptunium-240, Neptunium-241, Neptunium-242, Neptunium-243, Neptunium-244, Np-237.