what does decay mean in chemistry
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- Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting radiation.A material that spontaneously emits such radiation — which includes alpha particles, beta particles, gamma rays and conversion electrons — is considered radioactive.eta decay occurs when the nucleus emits an electron or positron and a neutrino, in a process that changes a proton to a neutron or the other way about. The nucleus may capture an orbiting electron, causing a proton to convert into a neutron in a process called electron capture.
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Definition of Decay Definition of decay. Change of an element into a different element, usually with some other particle(s) and energy emitted.Search the Dictionary.efinition of decay. Change of an element into a different element, usually with some other particle(s) and energy emitted. Search the Dictionary.
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- Graph of decayCalculation. The radioactive half-life for a given radioisotope is a measure of the tendency of the nucleus to decay or disintegrate and as such is based purely upon that probability.he rate of radioactive decay is typically expressed in terms of either the radioactive half-life, or the radioactive decay constant. They are related as follows: The decay constant is also sometimes called the disintegration constant.
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DECAY Hyponyms (each of the following is a kind of decay): alpha decay (radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle). beta decay (radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle).• DECAY (verb).yponyms (each of the following is a kind of decay): alpha decay (radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle). beta decay (radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle). • DECAY (verb).
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- Definition of BETA DECAY. : a radioactive nuclear transformation governed by the weak force in which a nucleon (as a neutron) changes into a nucleon (as a proton) of the other type with the emission of either an electron and an antineutrino or a positron and a neutrino.ADVERTISEMENT.efinition of BETA DECAY. : a radioactive nuclear transformation governed by the weak force in which a nucleon (as a neutron) changes into a nucleon (as a proton) of the other type with the emission of either an electron and an antineutrino or a positron and a neutrino. ADVERTISEMENT.
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radioactive decay radioactive decay-the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation. disintegration, decay. alpha decay-radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle. beta decay-radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle. nuclear reaction - (physics) a process that alters the energy or structure or composition of atomic nuclei. 1  Facebook.
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Questions and Answers We measure the quantity of radioactivity in several different units, but they are all related to a single basic characteristic of radioactive materials-the rate at which they decay..This question calls for some discussion of some of the terms used to describe radioactivity.hen a radioactive atom goes through such a transition, it always changes to a more stable atom. We call this change a decay or disintegration, although the atom doesn't really disintegrate. The decay of radioactive material into stable material is also accompanied by the emission of ionizing radiation.
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- Jul 3, 2014. Gamma decay occurs when a nucleus loses energy from the loss of very energetic light (gamma rays). Because light has no mass, the atomic mass number is unchanged. OK.
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Decay constant half-life. 1  in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a...
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Radioactivity Radioactive decay is a random process at the single- atom level; is impossible to predict exactly when a particular atom will decay. However, the chance that a given atom will decay is constant over time.
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decay n See daughter. decay, radioactive, n the disintegration of the nucleus of an unstable nuclide by the spontaneous emission of charged particles and/or photons.
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- Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting radiation. A material that spontaneously emits such radiation — which includes alpha particles, beta particles, gamma rays and conversion electrons — is considered radioactive.
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Half-life: Calculating Radioactive Decay and Interpreting Decay Graphs Half-Life. This phenomenon takes place every day in many chemical reactions and nuclear reactions, and it is called the half-life, which is the amount of time it takes for half of a sample to react. Your popcorn had a half-life of 15 minutes, meaning that every 15 minutes, half of it will get eaten.
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- In nuclear physics, beta decay (β -decay) is a type of radioactive decay in which a proton is transformed into a neutron, or vice versa, inside an atomic nucleus. This process allows the atom to move closer to the optimal ratio of protons and neutrons.
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What does crocodile taste like? I ate alligator once, cubed and sauteed in butter and garlic. The texture was very strange, like chicken that was both rubbery and stringy at once. I found the taste to be a little bit gamey (not exactly fishy, but, kind of funky in a way I can't completely explain). I can't say that I liked it or did not. ate alligator once, cubed and sauteed in butter and garlic. The texture was very strange, like chicken that was both rubbery and stringy at once. I found the taste to be a little bit gamey (not exactly fishy, but, kind of funky in a way I can't completely explain). I can't say that I liked it or did not.
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Radioactive decay Beta decay occurs when the nucleus emits an electron or positron and a neutrino, in a process that changes a proton to a neutron or the other way about. The nucleus may capture an orbiting electron, causing a proton to convert into a neutron in a process called electron capture.
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Chemical decomposition Chemical decomposition, analysis or breakdown is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.[1] Chemical decomposition is usually regarded and defined as the exact opposite of chemical synthesis.
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- Beta decay is somewhat more complex than alpha decay is. These points present a simplified view of what beta decay actually is: 1) A neutron inside the nucleus of an atom breaks down, changing into a proton. 2) It emits an electron and an anti-neutrino (more on this later) which go zooming off into space.
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Beta (finance) Beta decay refers to the tendency for a company with a high beta coefficient (β > 1) to have its beta coefficient decline to the market beta. It is an example of regression toward the mean
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Radioactive decay Alpha decay is one type of radioactive decay, in which an atomic nucleus emits an alpha particle, and thereby transforms (or decays) into an atom with a mass number decreased by 4 and atomic number decreased by 2.adioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting radiation. A material that spontaneously emits such radiation — which includes alpha particles, beta particles, gamma rays and conversion electrons — is considered radioactive.
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What Is Radioactivity? Radioactive decay is a random process, meaning that it is physically impossible to predict whether or not a given atomic nucleus will decay and emit radiation at any given moment. Instead, it is quantified by half-life, which is the period of time it takes for half of a given sample of nuclei to decay.
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decay 1. the decomposition of dead matter. 2. the process of decline, as in aging. beta decay disintegration of the nucleus of an unstable radionuclide in which the mass number is unchanged, but atomic number is changed by 1, as a result of emission of a negatively or positively charged (beta) particle. tooth decay dental caries.
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Radioactive decay Alpha decay is one type of radioactive decay, in which an atomic nucleus emits an alpha particle, and thereby transforms (or decays) into an atom with a mass number decreased by 4 and atomic number decreased by 2.adioactive decay is a stochastic (i.e. random) process at the level of single atoms, in that, according to quantum theory, it is impossible to predict when a particular atom will decay.
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Radioactive decay Radioactive decay. Alpha decay is  one type of radioactive decay, in which an atomic nucleus emits an alpha particle, and thereby transforms (or decays) into an atom with a mass number decreased by 4 and atomic number decreased by 2.
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What is tooth decay? Tooth decay is the disease process that causes tooth destruction. It is caused by bacteria on the tooth surface that breaks down carbohydrates (sugars) that you eat. The breakdown products are acids that dissolve tooth structure. Left untreated the decay process can lead to toothaches, infection and tooth loss.ooth decay, often referred to as a cavity is formed when bacteria that normally exist in your mouth use carbohydrate-containing foods (cookies, candy, sweetened cereal, fruit, soda, etc.) to produce acid.
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Alpha decay Visual representation of alpha decay. Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle 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.isual representation of alpha decay. Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle 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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Radioactive decay Many nuclei are radioactive. This means they are unstable, and will eventually decay by emitting a particle, transforming the nucleus into another nucleus, or into a lower energy state. A chain of decays takes place until a stable nucleus is reached. During radioactive decay, principles of conservation apply.