In the Nuclear Reaction $\begin{array} { c } 16 \\8\end{array}$ O

Q26: If a Σ^- particle at rest decays

Q27: The mass number of an atom is

Q49: A test tube of an isotope

Q53: The decay constant of radon-222 is

Q57: One of the fusion reactions that

Q58: In the radioactive decay equation

Q59: The activity of a sample reduces

Q99: Name the first three isotopes of hydrogen,

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Q129: The atomic number and mass number for