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Physical Properties of Americium and Protactinium

Americium
Protactinium
Physical Properties of Protactinium and Americium


Physical Properties
Melting Point
994.00 °C   
99+
1,568.00 °C   
21
Boiling Point
2,607.00 °C   
99+
4,027.00 °C   
12
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silver   
Luster
NA   
Metallic   
Hardness
  
  
Speed of Sound
Not Available   
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   
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