Mechanical Properties of Promethium and Ruthenium
Density
  
  
Density At Room Temperature
7.26 g/cm3
  
99+
12.45 g/cm3
  
27
Density When Liquid (at m.p.)
Not Available
  
10.65 g/cm3
  
16
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Other Mechanical Properties
NA
  
Ductile, Malleable