Which radioactive isotope is used in geological dating
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However, we generally refer to isotopes of a particular element (e.g., Rubidium-87 (Pb)).The number associated with an isotope is its atomic mass (i.e., protons plus neutrons).
There are a number of ways that this can happen and when it does, the atom is forever changed.Half-life is a very important and relatively difficult concept for students.
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