Radioactivity


 
 
Concept Explanation
 

Radioactivity

Radioactivity: It is the phenomenon of spontaneous disintegration, first observed in certain naturally occurring heavy elements like radium, actinium, uranium, thorium, etc., with the emission of alpha, beta and gamma rays.

Radiometric Dating: It is a method of calculating a substance's age by measurement of the radioactive materials it contains or of the amount of natural atomic fission that has occurred in the substance. These methods of calculating age are used in geology, anthropology, archaeology and other fields using known decay rates. The most common method is Carbon Dating, which is based on the principle that as organic matter grows, it traps carbon-14. The age of the organic matter is estimated by measuring the amount of carbon-14 remaining in the body. It is made use for dating material up to 60,000 years old.

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