Write the value of the $R_0$ constant used in the formula for the radius of a nucleus.

  • A
    $1.1 \times 10^{-15} \ m$
  • B
    $1.2 \times 10^{-15} \ m$
  • C
    $1.5 \times 10^{-15} \ m$
  • D
    $1.0 \times 10^{-15} \ m$

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