The radius of germanium (Ge) nuclide is measured to be twice the radius of ₄^9 Be . The number of nucleons in Ge are:

Step-by-step solution

Nuclear radii R=R₀ A^ 1 / 3 Where R₀=1.2 fm or R (A)^ 1 / 3 R_ H_e R_ G_e = (a)^ 1 3 (A)^ 1 3 or R_ H_e 2 R_ B^ = (q)^ 1 3 ( )^ 1 3 Given R_ G e =2 R_ B C (A)^ 1 / 3 =2 (9)^ 1 / 3 or A=23 9=8 9=72 Number of nucleus is Ge is 72