Mechanical Properties of Protactinium and Lanthanum
Density
  
  
Density At Room Temperature
15.37 g/cm3
  
20
6.16 g/cm3
  
99+
Density When Liquid (at m.p.)
Not Available
  
5.94 g/cm3
  
99+
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Unknown
  
Ductile