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Physical Properties of Thorium and Polonium


Physical Properties of Polonium and Thorium


Physical Properties

Melting Point
1,750.00 °C   
17
254.00 °C   
99+

Boiling Point
4,790.00 °C   
8
962.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silver   

Luster
NA   
NA   

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   
Yes   

α Allotropes
Not Available   
α-polonium   

β Allotropes
Not Available   
β-polonium   

γ Allotropes
Not Available   
Not Available   

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