KnowraDensityLinked fromLinked fromThe 63 pages that link to Density, each with the reason it gives.All 63Related 52Narrower topic 7Compared with 4ConcentrationCompared with: Density describes the mixture as a whole, rather than the amount of one constituent.Mass concentrationCompared with: It uses the same dimensions, but its numerator is usually the mass of the whole material.Number densityCompared with: Unlike number density, it weights each counted entity by its mass.Atomic packing factorCompared with: Atomic packing factor measures occupied hard-sphere volume, not mass per volume.