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Physical Properties of Lead and Thorium


Physical Properties of Thorium and Lead


Physical Properties

Melting Point
327.50 °C   
99+
1,750.00 °C   
17

Boiling Point
1,740.00 °C   
99+
4,790.00 °C   
8

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
Silver   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
1.50   
18
3.00   
12

Brinell Hardness
38.00 MPa   
99+
390.00 MPa   
29

Vickers Hardness
Not Available   
295.00 MPa   
29

Speed of Sound
1,190.00 m/s   
99+
2,490.00 m/s   
36

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

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