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Physical Properties of Roentgenium and Lanthanum


Physical Properties of Lanthanum and Roentgenium


Physical Properties

Melting Point
Not Available   
920.00 °C   
99+

Boiling Point
Not Available   
3,469.00 °C   
18

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Unknown Luster   
NA   

Hardness
  
  

Mohs Hardness
Not Available   
2.50   
14

Brinell Hardness
Not Available   
350.00 MPa   
30

Vickers Hardness
Not Available   
360.00 MPa   
26

Speed of Sound
Not Available   
2,475.00 m/s   
37

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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