Answer : In radioactive decay, the half-life is the length of time after which there is a 50% chance that an atom will have undergone nuclear decay. It varies depending on the atom type and isotope, and is usually determined experimentally.
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The answer to this question is c
Answer:
it is called a ledgar
Explanation:
Dont really know how to explain but hopefully it's right
<span>Answer: mycologist []</span>
