In the following diagrams,A represents a radioactive isotope that decays into a new isotope,X.Each circle represents 1 mmol of atoms. t = 0: t = 25.0 s: What is the half-life of A?

Question

In the following diagrams,A represents a radioactive isotope that decays into a new isotope,X.Each circle represents 1 mmol of atoms. t = 0:  t = 25.0 s:  What is the half-life of A?

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The Answer of In the following diagrams,A represents a radioactive isotope that decays into a new isotope,X.Each circle represents 1 mmol of atoms. t = 0:  t = 25.0 s:  What is the half-life of A?

In the Following Diagrams,A Represents a Radioactive Isotope That Decays