Question

identify the isotopes which is used to calculate the age of fossils and prehistoric objects. (deuterium,carbon -14 ,carbon-13 , iodine-131)​

Answer 1

Carbon-14, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues to date archaeological, geological and hydrogeological samples.

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Answer 2

Carbon-14 is used to to calculate the age of fossils and pre-historic objects.

Explanation:

• Among all the given isotopes- Carbon-14 is used to find the age of fossils and pre-historic objects.
• The process is basically known as Carbon-14 dating, also known as radioactive dating.
• C-14 is a naturally occurring isotope.
• It calculates the age of carbon-bearing materials.