How do you calculate the density of a neutron? Chemistry A Closer Look at The Atom Discovery of the Neutron 1 Answer anor277 Feb 16, 2017 #"Density"# #=# #"Mass"/"Volume"# Explanation: So #rho=(1.6726231*10^-27* kg)/((4/3)xxpixx(1.113xx10^-15 m )^3# #=2.90xx10^17*kg*m^-3#, which is fairly dense.......but then we expected it to be for a fundamental massive particle. Answer link Related questions Question #d41fc How big is a neutron relative to a proton? What is a neutron? How did James Chadwick contribute to the atomic theory? Why did James Chadwick use beryllium? Why did James Chadwick win the Nobel prize? Why are neutrons heavier than protons? Why is a neutron chargeless? Are protons and neutrons smaller than electrons? How many neutrons are in neon? See all questions in Discovery of the Neutron Impact of this question 12729 views around the world You can reuse this answer Creative Commons License