Physical Properties of Europium and Promethium
Physical Properties
Melting Point
822.00 °C
99+
1,042.00 °C
99+
Boiling Point
1,597.00 °C
99+
3,000.00 °C
31
Appearance
Physical State
Solid
Solid
Color
Silvery White
Unknown
Luster
Lustrous
Metallic
Hardness
Vickers Hardness
167.00 MPa
34
Not Available
Speed of Sound
Not Available
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
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