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Physical Properties of Lanthanum and Rubidium

Lanthanum
Rubidium
Physical Properties of Rubidium and Lanthanum


Physical Properties
Melting Point
920.00 °C   
99+
38.89 °C   
99+
Boiling Point
3,469.00 °C   
18
688.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Grayish White   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
2.50   
14
0.30   
24
Brinell Hardness
350.00 MPa   
30
0.22 MPa   
99+
Vickers Hardness
360.00 MPa   
26
Not Available   
Speed of Sound
2,475.00 m/s   
37
1,300.00 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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