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We call the uranium-238 the parent atom and the lead-206 the daughter atom.Understanding how long it takes for one element to become another element through radioactive decay is essential to absolute dating.A half-life is the time it takes for half of the atoms in an isotope to decay. Two half lives is 11,460 years and three half lives is 17,190 years.
Absolute dating is used to determine the exact date of rocks by using its atoms.
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Scientists need to understand radioactive decay in order to absolute date.
Atoms decay by losing a neutron and gaining a proton.
When the number of protons in an atom is changed we call this radioactive decay and through this process new elements are formed.