The radius of germanium (${\rm{Ge}}$) nuclide is measured to be twice the radius of ${}_4^9{\rm{Be}}$. The number of nucleons in ${\rm{Ge}}$ are

JEE PHYSICS MCQ: NUCLEI

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The radius of germanium (

\mathrm{Ge}

) nuclide is measured to be twice the radius of

{}_4^9\mathrm{Be}

. The number of nucleons in

\mathrm{Ge}

are

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Correct option: D

Option D (72) is correct because the number of nucleons is calculated using the relationship between nuclear radius and mass number.