Physical Properties of Scandium and Rubidium
Melting Point
1,539.00 °C
  
24
Boiling Point
2,832.00 °C
  
35
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery White
  
Grayish White
  
Luster
Lustrous
  
NA
  
Hardness
  
  
Mohs Hardness
Not Available
  
Speed of Sound
Not Available
  
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