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Physical Properties of Tantalum and Gadolinium

Tantalum
Gadolinium
Physical Properties of Gadolinium and Tantalum


Physical
Melting Point
2,996.00 °C  
4
1,311.00 °C  
35
Boiling Point
5,425.00 °C  
4
3,233.00 °C  
26
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gray Blue  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.50  
5
4.50  
10
Brinell Hardness
440.00 MPa  
33
700.00 MPa  
17
Vickers Hardness
870.00 MPa  
19
510.00 MPa  
34
Speed of Sound
3,400.00 m/s  
33
2,680.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.15  
10
1.97  
16
Reflectivity
78.00 %  
8
59.00 %  
24
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
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