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{{r|Alpha particle}}

{{r|Alpha particle}}

...spectrum]], and as [[kinetic energy]] of particles such as [[neutron]]s, [[alpha particle]]s, [[beta particle]]s, and [[neutrino]]s.<ref name=closeparphys2004>Close ...collection of &nbsp; ²³⁸U nuclei emits detectable amounts of [[alpha particle|&alpha; particles]] and even its decay product, the 234 isotope of [[thori

.../sup>[[Helium]] nucleus). The ²³⁸[[Uranium]] nuclide decays by alpha particle emission according to the scheme: ²³⁸U--->²³⁴[[Thoriu

{{r|Alpha particle}}

...E. Segre at the University of California by bombarding [[bismuth]] with [[alpha particle]]s. The longest-lived isotopes, with naturally occurring uranium and thoriu

...ic number that they are [[radioactive]], although their decay, typically [[alpha particle]] emission, may have very long [[half-life|half-lives]]. The daughter nucl

{{r|Alpha particle}}

...(see [[neutron]], [[electron]], [[positron]], [[photon]], [[proton]] or [[alpha particle]]," or produces

...a very small amount of uranium-234. Uranium decays slowly by emitting an [[alpha particle]].

...ement are radioactive, most of them emit high energy (generally >5 MeV) [[alpha particle]]s and low energy (<20 keV) gamma and [[x-ray]]s as they transform into [[u

{{r|Alpha particle}}

...a radiation|<math>\alpha</math> (alpha) radiation]] - the emission of an [[alpha particle]], which contains two [[proton]]s and two [[neutron]]s, from an [[atomic nu

...iquid solutions, measurement of the electron charge, black-body radiation, alpha particle emission, and [[X-ray diffraction|X-ray]] measurements of crystals. ...1908)</ref> concluded that their scintillation technique for detecting [[alpha particle|&alpha; particles]] (He nuclei) recorded 100% of the particles which are em

...the rate of strong attraction as the nucleus grows. Alpha decay emits an [[Alpha particle]] which is denoted with the [[Greek alphabet|Greek]] letter α.

...these probabilities. Whether a single particular uranium atom will emit an alpha particle in the next minute has a probability of, say, 0.5×10⁹. No amoun