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Physical Properties of Praseodymium and Beryllium

Praseodymium
Beryllium
Physical Properties of Beryllium and Praseodymium


Physical Properties
Melting Point
935.00 °C   
99+
1,278.00 °C   
36
Boiling Point
3,130.00 °C   
27
2,970.00 °C   
32
Appearance
  
  
Physical State
Solid   
Solid   
Color
Grayish White   
White Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
5.50   
7
Brinell Hardness
481.00 MPa   
24
590.00 MPa   
21
Vickers Hardness
400.00 MPa   
25
1,670.00 MPa   
4
Speed of Sound
2,280.00 m/s   
40
12,890.00 m/s   
2
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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