Nuclear radius follows R=R0A1/3 where A is mass number.
Given β=8α, we have Rα=R0α1/3 and Rβ=R0(8α)1/3=R0⋅2α1/3=2Rα.
Thus Rα/Rβ=1/2=0.5.
A nucleus has mass number α and radius Rα. Another nucleus has mass number β and radius Rβ. If β=8α then Rα/Rβ is:
Held on 28 Jan 2026 · Verified 6 Jul 2026.
8
0.5
2
1
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