Mechanical Properties of Protactinium and Nihonium
Density
  
  
Density At Room Temperature
15.37 g/cm3
  
20
16.00 g/cm3
  
19
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available
  
Not Available
  
Other Mechanical Properties
Unknown
  
Unknown