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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' ...

Glossary Term - Alpha Decay - Science Education at Jefferson Lab


Alpha decay is one process that unstable atoms can use to become more stable. During alpha decay, an atom's nucleus sheds two protons and two neutrons in ...

Alpha Decay - PhET


Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Alpha decay | Define Alpha decay at Dictionary.com


Alpha decay definition, a radioactive process in which an alpha particle is emitted from the nucleus of an atom, decreasing its atomic number by two. See more.

Alpha Decay


In alpha decay, shown in Fig. 3-3, the nucleus emits a 4He nucleus, an alpha particle. Alpha decay occurs most often in massive nuclei that have too large a ...



Alpha decay is a radioactive process in which a particle with two neutrons and two protons is ejected from the nucleus of a radioactive atom. The particle is ...

Radioactive Decay


Alpha decay of the <sup>238</sup>U "parent" nuclide, for example, produces <sup>234</sup>Th as the ... Electron ( /em><sup>-</sup>) emission is literally the process in which an electron is ...

The Process of Natural Radioactive Decay - For Dummies


There are three primary ways that naturally occurring radioactive isotopes decay: Alpha particle emission. Beta particle emission. Gamma radiation emission.

Types of Radioactive Decay - Boise State University

edtech2.boisestate.edu/lindabennett1/502/Nuclear Chemistry/types of decay.html

There are three main types of radioactive decay: alpha, beta, and gamma. Let's pause here a minute to define "decay." When an element decays the parent ...

Popular Q&A
Q: What is the charge of an alpha decay.
A: Alpha particles consist of 2 protons & 2 neutrons. These particles, then, have charge +2. Read More »
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Q: What is emitted in alpha decay.
A: Helium nucleii (He2+), also known as alpha particles. When an atom undergoes alpha decay the nucleus emits two protons and two neutrons. This is called an alpha... Read More »
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Q: What is the symbol for alpha decay?
A: Alpha particles are positively charged nuclei of helium, with two protons and two Read More »
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Q: What is an example of alpha decay?
A: Alpha 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 numb... Read More »
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Q: What's the definition of alpha decay?
A: alpha decay: radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle Read More »
Source: www.kgbanswers.com