radiometric dating


a: Radiometric dating ~
b: a clock inside a rock


"All physical elements begin to decay once they are formed and do so at a determinable rate. Radiometric dating is like a clock inside a rock which began ticking when that rock was formed and hence began to decay. The rate of decay is determined by the ratio between two isotopes called the parent and daughter. Their ratio determines the age of the rock"

Writer: Not Stated
Date: Nov 18 2017 5:56 PM

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