- published: 17 Dec 2014
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Radioactive decay is the process by which an atomic nucleus of an unstable atom loses energy by emitting ionizing particles (ionizing radiation). There are many different types of radioactive decay (see table below). A decay, or loss of energy, results when an atom with one type of nucleus, called the parent radionuclide, transforms to an atom with a nucleus in a different state, or to a different nucleus containing different numbers of nucleons. Either of these products is named the daughter nuclide. In some decays the parent and daughter are different chemical elements, and thus the decay process results in nuclear transmutation (creation of an atom of a new element).
The first decay processes to be discovered were alpha decay, beta decay, and gamma decay. Alpha decay occurs when the nucleus ejects an alpha particle (helium nucleus). This is the most common process of emitting nucleons, but in rarer types of decays, nuclei can eject protons, or specific nuclei of other elements (in the process called cluster decay). Beta decay occurs when the nucleus emits an electron or positron and a type of neutrino, in a process that changes a proton to a neutron or vice versa. The nucleus may capture an orbiting electron, converting a proton into an neutron (electron capture). All of these processes result in nuclear transmutation.
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Radioactivity
Is in the air for you and me
Radioactivity
Discovered by Madame Curie
Radioactivity
Tune in to the melody
Radioactivity
Is in the air for you and me
Morse:
Radioactivity is in the air for you and me
Radioactivity discovered by madame curie
Radioactivity tune in to the ... Kraftwerk
Radio Aktivitaet
Fuer dich und mich in All entsteht
(=For you and me in Space comes into being)
Radio Aktivitaet
Strahlt Wellen zum Empfangsgeraet
(=Sends waves to the receiver)
Radio Aktivitaet
Wenn's um unsere Zukunft geht
(=When its about our future)
Morse:
Radioactivity is in the air for you and me
Radioactivity discovered by madame curie
Radioactivity tune in to the ... Kraftwerk
Radioactivity
Is in the air for you and me
Radioactivity
Discovered by Madame Curie
Radioactivity
Tune in to the melody
Radioactivity