The most suitable unit for expressing nuclear radius is_______?
Correct answer: D. Fermi
- A. Angstrom
- B. Micro
- C. Nano meter
- D. Fermi
Explanation
A fermi, equal to 10^-15 metre, is suitable for nuclear dimensions because atomic nuclei are only a few femtometres across. Angstroms and nanometres are more appropriate for atomic and molecular scales.
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