Do scientists use radioactive dating

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These are the surfaces that we can get absolute ages for.For the others, one can only use relative age dating (such as counting craters) in order to estimate the age of the surface and the history of the surface.Among the best-known techniques are radiocarbon dating, potassium-argon dating and uranium-lead dating.By allowing the establishment of geological timescales, it provides a significant source of information about the ages of fossils and the deduced rates of evolutionary change.Unlike radiocarbon dating, relative dating can not give an exact measurement.

Radioactive atoms (called isotopes) will decay into different kinds of atoms at a steady and constant rate. We express this in terms of 'half-life.' For example, uranium-235 (a uranium atom with a total of 235 neutrons and protons in its nucleus) decays in to lead-207 with a half-life of 700 million years.

We have rocks from the Moon (brought back), meteorites, and rocks that we know came from Mars.

We can then use radioactive age dating in order to date the ages of the surfaces (when the rocks first formed, i.e. We also have meteorites from asteroids and can date them, too.

Radiometric dating is also used to date archaeological materials, including ancient artifacts.

Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.

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