Physical Properties of Rubidium and Gallium
Boiling Point
2,403.00 °C
  
99+
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Grayish White
  
Silvery White
  
Luster
NA
  
Metallic
  
Hardness
  
  
Speed of Sound
1,300.00 m/s
  
99+
2,740.00 m/s
  
31
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available