One radioisotope used for the dating of rocks and fossils
Another possibility is spontaneous fission into two or more nuclides.
Radioactive atoms are inherently unstable; over time, radioactive "parent atoms" decay into stable "daughter atoms." When molten rock cools, forming what are called igneous rocks, radioactive atoms are trapped inside. By measuring the quantity of unstable atoms left in a rock and comparing it to the quantity of stable daughter atoms in the rock, scientists can estimate the amount of time that has passed since that rock formed.C-14 is used often in dating artifacts from humans. Fiore taught high school science for 7 years and offered several teacher workshops to regarding education techniques.Corina Fiore is a writer and photographer living in suburban Philadelphia. She worked as a staff writer for science texts and has been published in Praxis review materials for beginning teachers.This process continues over time, with the organism losing half of the remaining C-14 isotopes each 5,730 years.Fossils are collected along with rocks that occur from the same strata.