If the nuclear radius of Al27 is 3.6 fm, the approximate nuclear radius of Cu64 in fermi is
Correct answer: D. 4.8 fm
- A. 1.2 fm
- B. 2.4 fm
- C. 3.6 fm
- D. 4.8 fm
Explanation
Explanation is given below. Nuclear radius, R = RoA1/3 where Ro is a constant and A is the mass number So, r Al/r Cu = A Al^⅓/ACu⅓ = 27⅓/64⅓ =4/3 Thus r Cu =4/3×3.6=4.8 Fermi
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About Composition of Atomic Nuclei
Atomic nuclei contain positively charged protons and electrically neutral neutrons, collectively called nucleons. Questions use atomic number, mass number and nuclear notation to identify isotopes, isobars and isotones, and may connect nuclear composition with nuclear charge, mass defect, binding energy and the stability of the nucleus.
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