Home
Compare Metals


Physical Properties of Thorium and Protactinium


Physical Properties of Protactinium and Thorium


Physical Properties

Melting Point
1,750.00 °C   
17
1,568.00 °C   
21

Boiling Point
4,790.00 °C   
8
4,027.00 °C   
12

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silver   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
3.00   
12
Not Available   

Brinell Hardness
390.00 MPa   
29
Not Available   

Vickers Hardness
295.00 MPa   
29
Not Available   

Speed of Sound
2,490.00 m/s   
36
Not Available   

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical >>
<< Uses

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series