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33 relations: Age of the universe, Alpha decay, Alpha particle, Asymptotic giant branch, Beta decay, Bismuth, Bismuth subsalicylate, Double beta decay, Exa-, Half-life, Isotope, Isotopes of astatine, Isotopes of bismuth, Isotopes of lead, Isotopes of polonium, Isotopes of tellurium, Isotopes of thallium, Magic number (physics), Neutron, Orsay, Polonium, Positron emission, Quarter (United States coin), R-process, Radionuclide, S-process, Star, Supernova, Tellurium, Tonne, Unified atomic mass unit, United States Geological Survey, 1,000,000,000.
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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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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Asymptotic giant branch
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.
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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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Bismuth
Bismuth is a chemical element with symbol Bi and atomic number 83.
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Bismuth subsalicylate
Bismuth subsalicylate, sold under the brand name Pepto-Bismol, is an antacid medication used to treat temporary discomforts of the stomach and gastrointestinal tract, such as diarrhea, indigestion, heartburn and nausea.
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Double beta decay
In nuclear physics, double beta decay is a type of radioactive decay in which two protons are simultaneously transformed into two neutrons, or vice versa, inside an atomic nucleus.
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Exa-
Exa is a decimal unit prefix in the metric system denoting 1018 or.
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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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Isotope
Isotopes are variants of a particular chemical element which differ in neutron number.
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Isotopes of astatine
Astatine (85At) has 37 known isotopes, all of which are radioactive; the range of their mass numbers is from 191 to 229.
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Isotopes of bismuth
Bismuth (83Bi) has no stable isotopes, but does have one very long-lived isotope; thus, the standard atomic weight can be given as.
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Isotopes of lead
Lead (82Pb) has four stable isotopes: 204Pb, 206Pb, 207Pb, 208Pb.
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Isotopes of polonium
Polonium (84Po) has 33 isotopes, all of which are radioactive, with between 186 and 227 nucleons.
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Isotopes of tellurium
There are 38 known isotopes and 17 nuclear isomers of tellurium (52Te), with atomic masses that range from 105 to 142.
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Isotopes of thallium
Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212.
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Magic number (physics)
In nuclear physics, a magic number is a number of nucleons (either protons or neutrons, separately) such that they are arranged into complete shells within the atomic nucleus.
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Neutron
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Orsay
Orsay is a commune in the Essonne department in Île-de-France in northern France.
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Polonium
Polonium is a chemical element with symbol Po and atomic number 84.
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Positron emission
Positron emission or beta plus decay (β+ decay) is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe).
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Quarter (United States coin)
The quarter, short for quarter dollar, is a United States coin worth 25 cents, one-fourth of a dollar.
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R-process
The rapid neutron-capture process, or so-called r-process, is a set of nuclear reactions that in nuclear astrophysics is responsible for the creation (nucleosynthesis) of approximately half the abundances of the atomic nuclei heavier than iron, usually synthesizing the entire abundance of the two most neutron-rich stable isotopes of each heavy element.
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Radionuclide
A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.
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S-process
The slow neutron-capture process or s-process is a series of reactions in nuclear astrophysics that occur in stars, particularly AGB stars.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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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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Tellurium
Tellurium is a chemical element with symbol Te and atomic number 52.
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Tonne
The tonne (Non-SI unit, symbol: t), commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms;.
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Unified atomic mass unit
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).
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United States Geological Survey
The United States Geological Survey (USGS, formerly simply Geological Survey) is a scientific agency of the United States government.
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1,000,000,000
1,000,000,000 (one billion, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001.
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References
[1] https://en.wikipedia.org/wiki/Bismuth-209
