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Physical Properties of Technetium and Cerium


Physical Properties of Cerium and Technetium


Physical Properties

Melting Point
2,200.00 °C   
9
795.00 °C   
99+

Boiling Point
4,877.00 °C   
7
3,257.00 °C   
23

Appearance
  
  

Physical State
Solid   
Solid   

Color
Shiny Gray   
Silvery White   

Luster
NA   
Lustrous   

Hardness
  
  

Mohs Hardness
Not Available   
2.50   
14

Brinell Hardness
Not Available   
186.00 MPa   
99+

Vickers Hardness
Not Available   
210.00 MPa   
32

Speed of Sound
16,200.00 m/s   
1
2,100.00 m/s   
99+

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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