A valid inference from the fact that the radius of the nucleus is related to the mass number A is that
A) the nuclear force obeys an inverse square law.
B) the number of nucleons per unit volume in atoms is independent of the element.
C) the atomic size increases as the nuclear size increases.
D) the nucleons in a nucleus are separated by distances large compared to their individual sizes.

Question

Quizplus · Accepted Answer

The relationship between the radius of the nucleus and the mass number A suggests a constant density of nucleons (protons and neutrons) across different nuclei, implying that the number of nucleons per unit volume is roughly the same for all elements.

A Valid Inference from the Fact That the Radius of the Nucleus