what is β
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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.n β+ decay, or positron emission, the weak interaction converts an atomic nucleus into a nucleus with atomic number decreased by one, while emitting a positron (e+) and an electron neutrino (ν e).
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- Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole.Beta is used in the capital asset pricing model (CAPM), a model that calculates the expected return of an asset based on its beta and expected market returns.Also known as beta coefficient.. beta of less than 1 means that the security will be less volatile than the market. A beta of greater than 1 indicates that the security's price will be more volatile than the market. For example, if a stock's beta is 1.2, it's theoretically 20% more volatile than the market.
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Definitions &Translations Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  beta(noun) the 2nd letter of the Greek alphabet. 2  Beta, genus Beta(adj) beets. 3  beta(adj) second in order of importance. 4  beta(adj) preliminary or testing stage of a software or hardware product.
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- 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 (ν e). Positron emission is mediated by the weak force.
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Beta (finance) In finance, the beta (β or beta coefficient) of an investment indicates whether the investment is more or less volatile than the market. In general, a beta less than 1 indicates that the investment is less volatile than the market, while a beta more than 1 indicates that the investment is more volatile than the market.
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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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Beta particles Top of Page. Beta Particles. Beta particles have a mass which is half of one thousanth of the mass of a proton and carry a single negative charge. Beta minus particles (β -) are electrons from the nucleus and are ejected by some radionuclides during a form of radioactive decay called beta-decay.
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Positron emission Positron emission or beta plus 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. Positron emission is mediated by the weak force. The positron is a type of beta particle, the other beta particle being the electron emitted from the β− decay of a nucleus. An example of positron emission is shown with magnesium-23 decaying into sodium-23: 23 12Mg → 23 ...
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Glossary of Nuclear Science Terms beta particle (beta radiation, beta ray): An electron of either positive charge (e+ or b+) or negative charge (e, e- or b-) emitted by an atomic nucleus or neutron in the process of a transformation. Beta particles are more penetrating than alpha particles but less than gamma rays or x-rays.
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- A beta particle is either an electron or a positron emitted by an atomic nucleus in beta decay, which is a type of radioactive decay. The phenomenon of beta decay involves a c … hange within the atomic nucleus of an atom.eta particles are actually electrons (-e) or can be  positrons.The mass of one electron or beta particle is  9.1095*10-31 kilograms or  0.000548597 AMU which is about 1/20 … 00 times the mass of a  proton or neutron.
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radioactivity Beta decay. Beta decay (β -decay) is the spontaneous inter-conversion of protons and neutrons. It occurs within the nucleus and is accompanied by the emission or absorption of electrons (e –) or positrons (e +) and neutrinos (ve) or antineutrinos (v̄e): (1) Electron β - -decay: n → p β- = e - + v̄e.pontaneous fission. Spontaneous fission is the spontaneous decay of heavy nuclei into two or, less frequently, three or four fragments, which are the nuclei of elements in the middle of the periodic system. Spontaneous fission and alpha decay limit the possibilities of obtaining new transuranium elements.
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Definition of 'Beta' Definition of 'Beta'. Tweet. Beta is a numeric value that measures the fluctuations of a stock to changes in the overall stock market. Definition: Beta is a numeric value that measures the fluctuations of a stock to changes in the overall stock market.Description: Beta measures the responsiveness of a stock's price to changes in the overall stock market. On comparison of the benchmark index for e.g.efinition of 'Beta'. Tweet. Beta is a numeric value that measures the fluctuations of a stock to changes in the overall stock market. Definition: Beta is a numeric value that measures the fluctuations of a stock to changes in the overall stock market.
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- A beta particle (also written as β-particle) is the same as an electron. It is often called a high energy electron because it is very fast moving. A beta particle comes from the nucleus of an atom! It has a charge of -1 and very little mass (only 1 ÷ 1840 as big as a proton).The e shows that the particle is an electron. A beta particle is given a mass number of zero because the mass is very small compared to a proton or a neutron.. A beta particle has a negative charge because it is an electron. 2. A beta particle has less mass than an alpha particle but more mass than a gamma ray. See the three types of radioactivity.
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- A beta particle is either an electron or a positron emitted by an atomic nucleus in beta decay, which is a type of radioactive decay. The phenomenon of beta decay involves a c … hange within the atomic nucleus of an atom.nswer by Quirkyquantummechanic. Confidence votes 77.5K. A beta particle is two particles emitted in the form of radioactive decay called beta decay. It is either an electron and an electron anti neutrino, which is emitted in beta-decay, or a positron and an electron neutrino, which is emitted in beta+ decay.
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- Beta distribution. In probability theory and statistics, the beta distribution is a family of continuous probability distributions defined on the interval [0, 1] parametrized by two positive shape parameters, denoted by α and β, that appear as exponents of the random variable and control the shape of the distribution.
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Beta (finance) Beta is also referred to as financial elasticity or correlated relative volatility, and can be referred to as a measure of the sensitivity of the asset 's returns to market returns, its non-diversifiable risk, its systematic risk, or market risk.
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beta particle beta particle. an electron emitted from the nucleus of an atom during radioactive decay of the atom. Beta particles have a range of 10 m in air and 1 mm in soft tissue. Also called beta ray. See beta rays.
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- Beta (UK: / ˈ b iː t ə /, US: / ˈ b eɪ t ə /; uppercase Β, lowercase β, or cursive ϐ; Ancient Greek: βῆτα, translit. bē̂ta or Greek: βήτα bē̂ta) is the second letter of the Greek alphabet. In the system of Greek numerals it has a value of 2. In Ancient Greek, beta represented the voiced bilabial plosive /b/.
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How To Get A Great Suntan Tan for only one to two hours per day. You do not need a lot of hours of sun but it is important if you want a good tan to make sure that you get one to two hours a day EVERY day as the consecutive days are going to give you that good tan not the number of hours in one day.ufa and exfoliate. Exfoliating your skin is a very good idea. When you are getting a suntan the color that you get is a result of the skin reacting to the sun. If you have dead skin on top of your good skin then it will be blocking the sun.
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Beta (finance) In finance, the beta (β) of an investment is a measure of the risk arising from exposure to general market movements as opposed to idiosyncratic factors.The market portfolio of all investable assets has a beta of exactly 1. beta greater than one generally means that the asset both is volatile and tends to move up and down with the market. An example is a stock in a big technology company. Negative betas are possible for investments that tend to go down when the market goes up, and vice versa.
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Hemolysis (microbiology) Beta hemolysis (β-hemolysis), sometimes called complete hemolysis, is a complete lysis of red cells in the media around and under the colonies: the area appears lightened (yellow) and transparent. Streptolysin, an exotoxin, is the enzyme produced by the bacteria which causes the complete lysis of red blood cells.
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What is 'Beta' Beta represents the tendency of a security's returns to respond to swings in the market. A security's beta is calculated by dividing the covariance the security's returns and the benchmark's returns by the variance of the benchmark's returns over a specified period.
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What is 'Beta' Loading the player... Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. Beta is used in the capital asset pricing model (CAPM), which calculates the expected return of an asset based on its beta and expected market returns.
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Wildlife Directory Red-Bellied Woodpecker (Melanerpes carolinus): The red-bellied woodpecker is a medium-sized woodpecker approximately nine to 10.5 inches in length. The two field marks used to identify red-bellied woodpeckers are the black and white striped back and the red patch on the head.Females have only a red patch on the nape of the neck while males have a red cap that extends down the neck. The underside may have a blush of red feathers.ale hairy woodpeckers can be distinguished from females by the red patch on the back of their heads. Yellow-Bellied Sapsucker (Sphyrapicus varius): The yellow-bellied sapsucker is a medium-sized woodpecker approximately eight to nine inches in length.
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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 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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Law of Conservation of Energy In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which a beta ray, and a respective neutrino are emitted from an atomic nucleus.