Mechanical Properties of Polonium and Neptunium
Density
  
  
Density At Room Temperature
9.20 g/cm3
  
99+
19.38 g/cm3
  
14
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Poisson Ratio
Not Available
  
Not Available
  
Other Mechanical Properties
NA
  
Ductile