Using radiometric dating how old is the earth
The Solar System was formed around 4.6 billion years ago, out of the collapse of a dense cloud composed of dusts and gases.
Half-lives as measured today are very accurate, even the extremely slow half-lives. This age has been determined with the radioactive dating technique.The precise decay rate of radioactive elements is used as a clock: the number of daughter products in one rock indicates its age.Determining how the environment might have affected a rock also falls under historical science. Since radioisotope dating uses both types of science, we can’t directly measure the age of something.We can use scientific techniques in the present, combined with assumptions about historical events, to estimate the age.