Definition of radioisotope dating Online chat whores

Thus, the net effect of alpha radioactivity is to produce nuclei lighter than those of the original radioactive substance.For example, in the disintegration, or decay, of uranium-238 by the emission of alpha particles, radioactive thorium (formerly called ionium) is produced.actinide series,a series of radioactive metallic elements in Group 3 of the periodic table.Members of the series are often called actinides, although actinium (at. 89) is not always considered a member of the series......particle accelerator,apparatus used in nuclear physics to produce beams of energetic charged particles and to direct them against various targets.Such machines, popularly called atom smashers, are needed to observe objects as small as the atomic nucleus in studies of its..... Essentially there is no difference between these two manifestations of radioactivity.

A moving charge gives rise to a magnetic field, and if the motion is changing (accelerated), then the magnetic field varies and in turn produces an electric field......

The lifetime of a radioactive substance is not affected in any way by any physical or chemical conditions to which the substance may be subjected.

The rate of disintegration of a radioactive substance is commonly designated by its half-lifehalf-life,measure of the average lifetime of a radioactive substance (see radioactivity) or an unstable subatomic particle.

Alpha rays are nuclei of ordinary helium atoms (see alpha particlealpha particle,one of the three types of radiation resulting from natural radioactivity.

Alpha radiation (or alpha rays) was distinguished and named by E. Rutherford in 1909, who found by measuring the charge and mass of alpha particles that they are the nuclei of ordinary..... Alpha decay reduces the atomic weight, or mass number, of a nucleus, while beta and gamma decay leave the mass number unchanged.

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