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Physical Properties of Protactinium and Polonium


Physical Properties of Polonium and Protactinium


Physical Properties

Melting Point
1,568.00 °C   
21
254.00 °C   
99+

Boiling Point
4,027.00 °C   
12
962.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silver   

Luster
Metallic   
NA   

Hardness
  
  

Speed of Sound
Not Available   
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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