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69 relations: Actinide, Alpha particle, Americium, Atomic battery, Atomic nucleus, Beta decay, Beta particle, Binding energy, Bond-dissociation energy, Curie, DARPA, Electron, Electronvolt, Excited state, Fluorescence, Forbidden mechanism, Gamma ray, Gram, Ground state, Hafnium, Half-life, Holmium, Induced gamma emission, Internal conversion, Ionization energy, Isomeric shift, Isotope, Isotopes of hafnium, Isotopes of holmium, Isotopes of protactinium, Isotopes of tantalum, Isotopes of thorium, JASON (advisory group), Laser, Light, Ludwig Maximilian University of Munich, Lutetium, Metastability, Microsecond, Nanosecond, Nature (journal), Nuclear binding energy, Nuclear fusion, Nuclear Physics News, Nuclear reaction, Nuclear shell model, Nucleon, Orders of magnitude (power), Otto Hahn, Photoelectric effect, ..., Photon, Photon energy, Plutonium, Quantum mechanics, Radioactive decay, Rotational symmetry, Silver, Spheroid, Spin (physics), Spontaneous fission, Stimulated emission, Supernova, Tantalum, Technetium, Technetium-99m, The Science of Nature, The Washington Post, Treaty on the Non-Proliferation of Nuclear Weapons, Tungsten. Expand index (19 more) »
Actinide
The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
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Alpha particle
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus.
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Americium
Americium is a synthetic chemical element with symbol Am and atomic number 95.
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Atomic battery
The terms atomic battery, nuclear battery, tritium battery and radioisotope generator are used to describe a device which uses energy from the decay of a radioactive isotope to generate electricity.
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Atomic nucleus
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.
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Beta decay
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.
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Beta particle
A beta particle, also called beta ray or beta radiation, (symbol β) is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay.
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Binding energy
Binding energy (also called separation energy) is the minimum energy required to disassemble a system of particles into separate parts.
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Bond-dissociation energy
Bond-dissociation energy (BDE or D0) is one measure of the strength of a chemical bond.
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Curie
The curie (symbol Ci) is a non-SI unit of radioactivity originally defined in 1910.
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DARPA
The Defense Advanced Research Projects Agency (DARPA) is an agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military.
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Electron
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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Electronvolt
In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).
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Excited state
In quantum mechanics, an excited state of a system (such as an atom, molecule or nucleus) is any quantum state of the system that has a higher energy than the ground state (that is, more energy than the absolute minimum).
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Fluorescence
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation.
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Forbidden mechanism
In spectroscopy, a forbidden mechanism (forbidden transition or forbidden line) is a spectral line associated with absorption or emission of light by atomic nuclei, atoms, or molecules which undergo a transition that is not allowed by a particular selection rule but is allowed if the approximation associated with that rule is not made.
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Gamma ray
A gamma ray or gamma radiation (symbol γ or \gamma), is penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.
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Gram
The gram (alternative spelling: gramme; SI unit symbol: g) (Latin gramma, from Greek γράμμα, grámma) is a metric system unit of mass.
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Ground state
The ground state of a quantum mechanical system is its lowest-energy state; the energy of the ground state is known as the zero-point energy of the system.
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Hafnium
Hafnium is a chemical element with symbol Hf and atomic number 72.
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Half-life
Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half its initial value.
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Holmium
Holmium is a chemical element with symbol Ho and atomic number 67.
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Induced gamma emission
In physics, induced gamma emission (IGE) refers to the process of fluorescent emission of gamma rays from excited nuclei, usually involving a specific nuclear isomer.
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Internal conversion
Internal conversion is a radioactive decay process wherein an excited nucleus interacts electromagnetically with one of the orbital electrons of the atom.
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Ionization energy
The ionization energy (Ei) is qualitatively defined as the amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated gaseous atom to form a cation.
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Isomeric shift
The isomeric shift (also called isomer shift) is the shift on atomic spectral lines and gamma spectral lines, which occurs as a consequence of replacement of one nuclear isomer by another.
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Isotope
Isotopes are variants of a particular chemical element which differ in neutron number.
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Isotopes of hafnium
Natural hafnium (72Hf) consists of five stable isotopes (176Hf, 177Hf, 178Hf, 179Hf, and 180Hf) and one very long-lived radioisotope, 174Hf, with a half-life of 2×1015 years.
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Isotopes of holmium
Natural holmium (67Ho) contains one stable isotope, 165Ho.
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Isotopes of protactinium
Protactinium (91Pa) has no stable isotopes.
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Isotopes of tantalum
Natural tantalum (73Ta) consists of two stable isotopes: 181Ta (99.988%) and (0.012%).
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Isotopes of thorium
Although thorium (90Th) has 6 naturally occurring isotopes, none of these isotopes are stable; however, one isotope, 232Th, is relatively stable, with a half-life of 1.405×1010 years, considerably longer than the age of the Earth, and even slightly longer than the generally accepted age of the universe.
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JASON (advisory group)
JASON is an independent group of elite scientists which advises the United States government on matters of science and technology, mostly of a sensitive nature.
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Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
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Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
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Ludwig Maximilian University of Munich
Ludwig Maximilian University of Munich (also referred to as LMU or the University of Munich, in German: Ludwig-Maximilians-Universität München) is a public research university located in Munich, Germany.
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Lutetium
Lutetium is a chemical element with symbol Lu and atomic number 71.
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Metastability
In physics, metastability is a stable state of a dynamical system other than the system's state of least energy.
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Microsecond
A microsecond is an SI unit of time equal to one millionth (0.000001 or 10−6 or 1/1,000,000) of a second.
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Nanosecond
A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second (or one billionth of a second), that is, 1/1,000,000,000 of a second, or 10 seconds.
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Nature (journal)
Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.
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Nuclear binding energy
Nuclear binding energy is the minimum energy that would be required to disassemble the nucleus of an atom into its component parts.
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Nuclear fusion
In nuclear physics, nuclear fusion is a reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons or protons).
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Nuclear Physics News
Nuclear Physics News, International is a quarterly science magazine covering research in nuclear physics, published since 1990 by Taylor & Francis.
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Nuclear reaction
In nuclear physics and nuclear chemistry, a nuclear reaction is semantically considered to be the process in which two nuclei, or else a nucleus of an atom and a subatomic particle (such as a proton, neutron, or high energy electron) from outside the atom, collide to produce one or more nuclides that are different from the nuclide(s) that began the process.
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Nuclear shell model
In nuclear physics and nuclear chemistry, the nuclear shell model is a model of the atomic nucleus which uses the Pauli exclusion principle to describe the structure of the nucleus in terms of energy levels.
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Nucleon
In chemistry and physics, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus.
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Orders of magnitude (power)
This page lists examples of the power in watts produced by various sources of energy.
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Otto Hahn
Otto Hahn, (8 March 1879 – 28 July 1968) was a German chemist and pioneer in the fields of radioactivity and radiochemistry.
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Photoelectric effect
The photoelectric effect is the emission of electrons or other free carriers when light shines on a material.
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Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
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Photon energy
Photon energy is the energy carried by a single photon.
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Plutonium
Plutonium is a radioactive chemical element with symbol Pu and atomic number 94.
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Quantum mechanics
Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles.
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Radioactive decay
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.
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Rotational symmetry
Rotational symmetry, also known as radial symmetry in biology, is the property a shape has when it looks the same after some rotation by a partial turn.
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Silver
Silver is a chemical element with symbol Ag (from the Latin argentum, derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47.
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Spheroid
A spheroid, or ellipsoid of revolution, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters.
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Spin (physics)
In quantum mechanics and particle physics, spin is an intrinsic form of angular momentum carried by elementary particles, composite particles (hadrons), and atomic nuclei.
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Spontaneous fission
Spontaneous fission (SF) is a form of radioactive decay that is found only in very heavy chemical elements.
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Stimulated emission
Stimulated emission is the process by which an incoming photon of a specific frequency can interact with an excited atomic electron (or other excited molecular state), causing it to drop to a lower energy level.
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Supernova
A supernova (plural: supernovae or supernovas, abbreviations: SN and SNe) is a transient astronomical event that occurs during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion.
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Tantalum
Tantalum is a chemical element with symbol Ta and atomic number 73.
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Technetium
Technetium is a chemical element with symbol Tc and atomic number 43.
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Technetium-99m
Technetium-99m is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99mTc, that is used in tens of millions of medical diagnostic procedures annually, making it the most commonly used medical radioisotope.
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The Science of Nature
The Science of Nature, formerly Naturwissenschaften, is a monthly peer-reviewed scientific journal published by Springer Science+Business Media covering all aspects of the natural sciences relating to questions of biological significance.
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The Washington Post
The Washington Post is a major American daily newspaper founded on December 6, 1877.
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Treaty on the Non-Proliferation of Nuclear Weapons
The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperation in the peaceful uses of nuclear energy, and to further the goal of achieving nuclear disarmament and general and complete disarmament.
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Tungsten
Tungsten, or wolfram, is a chemical element with symbol W (referring to wolfram) and atomic number 74.
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Isomeric nuclide, Isomeric states, Isomeric transition, Meta state, Meta states, Metastability in nuclear decay, Metastable isomer, Metastable isomers, Metastable isotope, Nuclear excitation, Nuclear isomerism, Nuclear isomers.
References
[1] https://en.wikipedia.org/wiki/Nuclear_isomer
