How can I calculate the densities of a hydrogen nucleus and a hydrogen atom?
You use the formula for density and the published radii to calculate the densities. The values are
The formulas to use are
A hydrogen nucleus is a proton, and the mass of a proton is
The most recent value for the radius of a proton is
The mass of a hydrogen atom is
The radius of a hydrogen atom, calculated using self-consistent field functions, is