If the nuclear radius of Al -27 is 3.6 fm, the approximate nuclear radius of Cu-64 in fm is:
Correct answer: D. 4.8 fm
- A. 1.2 fm
- B. 2.4 fm
- C. 3.6 fm
- D. 4.8 fm
Explanation
By having a look at the atomic number of Al and Cu, it can be concluded that Cu has more protons in its nucleus than that of Al. So the nuclear radius of Cu in fermi must be greater than 3.6fm. Here only option D can be the correct answer.
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