Physical Properties of Yttrium and Cesium
Melting Point
1,523.00 °C
  
27
Boiling Point
3,337.00 °C
  
21
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery White
  
Silvery Gold
  
Luster
NA
  
NA
  
Hardness
  
  
Mohs Hardness
Not Available
  
Speed of Sound
3,300.00 m/s
  
23
Not Available
  
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available