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Isotopes of actinium

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Actinium (89Ac) has no stable isotopes and no characteristic terrestrial isotopic composition, thus a standard atomic weight cannot be given. [1]

24 relations: Actinium, Age of the universe, Alpha decay, Brookhaven National Laboratory, Carbon-14, Cluster decay, CRC Handbook of Chemistry and Physics, CRC Press, Decay product, Electron capture, Isotope, Isotopes of neptunium, Isotopes of thorium, John Wiley & Sons, Nanosecond, National Nuclear Data Center, Neutron, Nuclear isomer, Nuclear medicine, Nuclear Physics (journal), Proton, Pure and Applied Chemistry, Standard atomic weight, Uranium-235.

Actinium

Actinium is a chemical element with symbol Ac and atomic number 89.

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Age of the universe

In physical cosmology, the age of the universe is the time elapsed since the Big Bang.

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Alpha decay

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.

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Brookhaven National Laboratory

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.

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Carbon-14

Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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Cluster decay

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.

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CRC Handbook of Chemistry and Physics

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).

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CRC Press

The CRC Press, LLC is a publishing group based in the United States that specializes in producing technical books.

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Decay product

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.

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Electron capture

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.

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Isotope

Isotopes are variants of a particular chemical element which differ in neutron number.

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Isotopes of neptunium

Neptunium (93Np) is usually considered an artificial element, although trace quantities are found in nature, so thus a standard atomic weight cannot be given.

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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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John Wiley & Sons

John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.

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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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National Nuclear Data Center

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.

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Neutron

| magnetic_moment.

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Nuclear isomer

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).

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Nuclear medicine

Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease.

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Nuclear Physics (journal)

Nuclear Physics is a peer-reviewed scientific journal published by Elsevier.

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Proton

| magnetic_moment.

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Pure and Applied Chemistry

Pure and Applied Chemistry (abbreviated Pure Appl. Chem.) is the official journal for the International Union of Pure and Applied Chemistry (IUPAC).

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Standard atomic weight

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.

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Uranium-235

Uranium-235 (235U) is an isotope of uranium making up about 0.72% of natural uranium.

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Redirects here:

Actinium-206, Actinium-207, Actinium-208, Actinium-209, Actinium-210, Actinium-211, Actinium-212, Actinium-213, Actinium-214, Actinium-215, Actinium-216, Actinium-217, Actinium-218, Actinium-219, Actinium-220, Actinium-221, Actinium-222, Actinium-223, Actinium-224, Actinium-225, Actinium-226, Actinium-227, Actinium-228, Actinium-229, Actinium-230, Actinium-231, Actinium-232, Actinium-233, Actinium-234, Actinium-235, Actinium-236.

References

[1] https://en.wikipedia.org/wiki/Isotopes_of_actinium

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