The substances below are used for radiometric dating. This is helpful when dating fossils from the past. Place the isotopes in order from longest half-life (3) to shortest half-life (1).

Potassium-Argon Dating
Uranium-238-Lead-206 Dating
Carbon-14 Dating

Respuesta :

The isotopes in order from longest half-life (3) to shortest half-life are Uranium-238-Lead-206 Dating, Carbon-14 Dating, and Potassium-Argon Dating.

Isotopes are two or more different atom types that share the same atomic number and are placed in the periodic table but have different quantities of neutrons in their nuclei, resulting in various nucleon numbers.

The duration needed for a quantity of a radioisotope to decay by half is known as its radioactive half-life. The majority of the radioactivity will disappear within a few days if an isotope has a half-life of only a few hours or less.

Uranium-238 decays to lead-206 and uranium-235 decays to lead-207 in uranium-lead dating. While carbon-14 has a half-life of only 5,730 years, uranium-lead dating can be used to date rocks that are billions of years old.

The half-life of carbon-14 is 5,730 40 years, meaning that for the next 5,730 years, half of the radioisotope that is present at any particular time will spontaneously disintegrate.

Potassium-40's half-life is 1.3 billion years, far longer than carbon-14's, making it possible to date even older samples. Due to the prevalence of potassium in rocks and minerals, it is possible to date several samples with geochronological or archaeological value.

To know more about isotopes refer to:  https://brainly.com/question/12955625

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