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Physical Properties of Technetium and Copper

Technetium
Copper
Physical Properties of Copper and Technetium


Physical Properties
Melting Point
2,200.00 °C   
9
1,084.62 °C   
40
Boiling Point
4,877.00 °C   
7
2,562.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Shiny Gray   
Copper   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
Not Available   
3.00   
12
Brinell Hardness
Not Available   
235.00 MPa   
38
Vickers Hardness
Not Available   
343.00 MPa   
28
Speed of Sound
16,200.00 m/s   
1
3,810.00 m/s   
19
Optical Properties
  
  
Reflectivity
Not Available   
90.00 %   
3
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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