THE PRACTICE STUDIO
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PRACTICE / Nuclear size
A radius law used for an area
In the spherical nuclear model R = r₀A^(1/3), compare mass numbers 216 and 64 with the same r₀.
Find the ratio of geometric cross-sectional areas, area216/area64.
Organize the givens & assumptions
- Mass numbers: 216 and 64
- Radius model: R = r₀A^(1/3)
- Same r₀; geometric area πR²
Use the approximate spherical geometry and cross-sectional area πR². This is not a claim about a measured nuclear-reaction cross section.
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