Radioactivitydoi:10.1007/978-3-642-16483-5_4914Is the process of releasing nuclear particles from unstable atomic nuclei, also called the radioactive decay or disintegration. All elements with atomic number greater than 82 (lead) are unstable and...Springer Berlin Heidelberg...
Radioactivity is the process whereby unstable atomic nuclei release energetic subatomic particles or electromagnetic radiation (EMR). This phenomenon can cause one element to turn into another and is partly responsible for the heat of the Earth’s core. Radioactivity has a wide range of uses, ...
Definition The process of decay of an unstable atom in order to attain a stable nuclear configuration by giving out α, β particles and γ or x rays is known as radioactivity (See Radioactive Isotopes ). The process of radioactivity may complete in a fraction of second or it may continue...
Radioactivity represents the phenomenon whereby unstable atomic nuclei spontaneously decompose, releasing nuclear particles and/or energy in the process. Of the 287 naturally occurring isotopes , at least 62 are unstable. Radioactive decay can be characterized in terms of the breakdown of the unstable ...
alpha decay- radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle beta decay- radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle nuclear reaction- (physics) a process that alters the energy or structure or ...
Geiger-Mueller Counter -Used to detect radiation -Ionizing radiation ionizes the detector gas -Each ionization event creates a pulse of current which is then counted Example Beta- decay (t1/2 = 30.1 years) Ba-137m to Ba-137 (t1/2 = 2.6 minutes) Ba-137m is a metastable nucleus because...
radioactivity@sawaaaa Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nucle
Radioactive decay is a random or stochastic process that occurs at the level of individual atoms. While it is impossible to predict exactly when a single unstable nucleus will decay, the rate of decay of a group of atoms may be predicted based on decay constants or half-lives. Ahalf-life...
Micro vapor-phase hydrogenation monitored with tandem chromatography-radioactivity. II. Evaluation of catalyst selectivity for linolenate Micro vapor-phase hydrogenation is a rapid and effective method of studying the kinetic characteristics of hydrogenation catalysts. Eight catalysts were investigated, and ...
particles or tiny bursts of radiation. This process is called radioactivity. Although radioactivity can be harmful to people, it can also be important to us in everyday life. It is used to make nuclear energy and preserve food, and it also plays a vital role in the treatment of cancer. ...