Compare the radii of two nuclei with mass number 1 and 27 respectively.
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To compare the radii of two nuclei with mass numbers 1 and 27, we can use the formula for the radius of a nucleus:
### Step 1: Write the formula for the radius of a nucleus.
The radius \( r \) of a nucleus is given by the formula:
\[
r = r_0 \cdot A^{1/3}
\]
where \( r_0 \) is a constant (approximately \( 1.2 \times 10^{-15} \) meters) and \( A \) is the mass number of the nucleus.
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