The radius of the ⁶³Cu nucleus is approximately A)0.382 fm B)5.97 fm C)12.1 fm D)24.2 fm E)100 fm

Question

Quizplus · Accepted Answer

The radius $ R $ of a nucleus can be estimated using the formula $ R = R_0 A^{1/3} $, where $ R_0 $ is a constant approximately equal to 1.2 fm, and $ A $ is the mass number of the nucleus. For the $ ^{63}_{29}Cu $ nucleus, $ A = 63 $. Plugging these values into the formula gives $ R \approx 1.2 \times 63^{1/3} \approx 5.97 $ fm, which matches choice B.

The Radius of the 63Cu Nucleus Is Approximately

The Radius of the ⁶³Cu Nucleus Is Approximately