particle density Directory References Discover Why Is It Called Black Friday? What Is the Difference Between a Typhoon and a Super Typhoon? 10 Failed Doomsday Predictions Was Santa Claus a Real Person? Why Do We Eat Turkey on Thanksgiving? Flags That Look Alike Why Is the Mona Lisa So Famous? Contents particle density physics Ask the Chatbot a Question Learn about this topic in these articles:definition In densityThe expression particle density refers to the number of particles per unit volume, not to the density of a single particle, and it is usually expressed as n.Read More