The density of neon at a gas state is 0.89990g/l. The density of neon at its boiling point is 1.207g/cm3
Neon becomes a liquid at -246 degrees C. Its density is 1,207 grams per liter, a little denser than room-temperature water
At a temperature of -249 degrees C, solid neon's density is 1,444 grams per liter