Which is the most suitable unit for expressing nuclear radius?

Q. Which is the most suitable unit for expressing nuclear radius?
Answer: Fermi
Notes: The unit of nuclear length is called the "fermi", (fm); 1 fm = 10^-15m. It is the most suitable unit for expressing nuclear radius. Named after the Italian physicist Enrico Fermi, it has been now replaced by the SI term femtometer (symbol, fm); one fermi = one femtometer.

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