Question

The ratio of the mass densities of nuclei of \( ^{40}\text{Ca} \) and \( ^{16}\text{O} \) is close to:

• A. \( 1 \)
• B. \( 0.1 \)
• C. \( 5 \)
• D. \( 2 \)

Hint:

The constancy of nuclear density arises because both nuclear mass and volume scale directly with the mass number (\(A\)). This principle holds for all atomic nuclei, regardless of size or composition.