Elements used for radioactive dating abc dating in the dark updates

25 Aug

For example, when the Enterprise approaches a star on "Star Trek," a member of the crew might warn about an increase in radiation levels.In Tom Clancy's book "The Hunt for Red October," a Russian submarine has a nuclear reactor accident with radiation leakage that forces the crew to abandon ship.), however, is a radioactive isotope, the other two being stable.More than 1,000 radioactive isotopes of the various elements are known.Each “parent” radioactive isotope eventually decays into one or at most a few stable isotope “daughters” specific to that parent. ­You've probably heard people talk about radiation both in fiction and in real life.

It always occurs in compounds, combined with other elements.

Approximately 50 of these are found in nature; the rest are produced artificially as the direct products of .

Other radioactive isotopes are used as tracers for diagnostic purposes as well as in research on metabolic processes.

It was first prepared in pure form in 1807 by English chemist Sir Humphry Davy (1778-1829).

Davy used a new method of isolating elements that he had invented, electrolysis.