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Physical Properties of Copper and Technetium

Copper
Technetium
Physical Properties of Technetium and Copper


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