Question

The ratio of the nuclear densities of two nuclei having the mass numbers 8 and 27 is ______.

Options

• 8 : 27

• 3 : 2

• 2 : 3

• 1 : 1

Answer 1

1 : 1

Explanation:

Nuclear density is independent of mass number (A) because

ρ = `(Am_N)/(4/3 pi R^3)`

and the nuclear radius is

R = `R_oA^(1/3)`

So, `ρ ∝ A/A` = Constant

1 : 1