As we know, density of nuclei= volume of nuclei mass of nuclei
⇒ρ=34π(1.5×10−15)3A1.6×10−27A
=14.14×10−451.6×10−27=0.113×1018kgm−3
We also know that, density of water is ρw=103kgm−3.
Hence,
ρwρ=11.31×1013.
Therefore, n≈11
Assume that protons and neutrons have equal masses. Mass of a nucleon is 1.6×10−27kg and radius of nucleus is 1.5×10−15A31m. The approximate ratio of the nuclear density and water density is n×1013. The value of n is _____.
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