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Alpha Radioactive Decay
A type of radioactive decay, noted α, in which an alpha particle (helium nucleus), is emitted.
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Alpha Radioactive Decay
Alpha Radioactive Decay☜A type of radioactive decay, noted α, in which an alpha particle (helium nucleus), is emitted.☜D3ABAB
□
Beta Radiactive Decay
Beta Radiactive Decay☜A type of radioactive decay, noted β, in which a beta particle (an electron or a positron) is emitted. If an electron (a negatively charged particle) is emitted, the emission is called beta minus (β–) decay; if a positron (a positively charged particle) is emitted, the emission is called beta plus (β+) decay. The weak interaction is at the origin of this form of radioactivity. For instance, a neutron turns into a proton by emitting an electron and an antineutrino.☜D3ABAB
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Gamma Radioactive Decay
Gamma Radioactive Decay☜Gamma decay is the emission of electromagnetic radiation of an extremely high frequency i.e. very high energy, giving out excess energy in order to stabilize the unstable nucleus. Unlike the two other types of decay, it does not involve a change in the element.☜D3ABAB
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Fission
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Fusion
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Lifetime
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Radioactivity
Radioactivity☜A natural phenomenon during which unstable atomic nuclei transform (decay). They emit energy in the form of various radiations, to decay into more stable nuclei that have lost part of their mass. The emitted radiations are called, depending on the case, α rays (Helium nuclei), β rays (electrons or positrons), or γ rays (energetic photons).☜00CFE4
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Unstable Particle
Unstable Particle☜The primary components of ordinary matter, e.g. the proton or the electron, are stable. But most pf the particles created in high energy collisions are unstable, and spontaneously transform (decay) into lighter ones. The particles in the final state may themselves be unstable and subject to further decay, until only stable particle remain. In collider experiments the final set of particles is analysed to reconstruct the initial particle properties. ☜00CFE4
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Claire Adam
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Entry date (GMT):
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