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' ...
Watch alpha particles escape from a polonium nucleus, causing radioactive
alpha decay. See how random decay times relate to the half life.
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. In 1899, Ernest Rutherford wrote the following words: "These
experiments show that the uranium radiation is complex and that there are
present at ...
Learn more about alpha decay in the Boundless open textbook.
... kind of radiation. The most common types of radiation are called alpha, beta,
and gamma radiation, but there are several other varieties of radioactive decay.
Alpha decay, type of radioactive disintegration in which some unstable atomic
nuclei dissipate excess energy by spontaneously ejecting an alpha particle.
Dec 22, 2011 ... To see all my Chemistry videos, check out http://socratic.org/chemistry Alpha
decay is a type of radioactive (nuclear) decay. Here, I explain what ...
During alpha decay the atomic number is reduced by two units and the mass
number by four units. For example, alpha decay generates Rn-222 with the
Smoke detectors work by alpha decay. Americium-241 is inside smoke detectors,
and when smoke particles enter the detector the alpha particles released by ...