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Protactinium
Protactinium

Uranium
Uranium



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Protactinium
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Uranium

Physical Properties of Protactinium and Uranium

Physical

Melting Point

Boiling Point

Physical State

Color

Luster

Mohs Hardness

Brinell Hardness

Vickers Hardness

Speed of Sound

Refractive Index

Reflectivity

Allotropes

α Allotropes

β Allotropes

γ Allotropes

 
1,568.00 °C
4,027.00 °C
Solid
Silver
Metallic
5.00
125.00 MPa
220.00 MPa
12,400.00 m/s
1.60
60.00 %
-
-
-
 
1,132.00 °C
3,818.00 °C
Solid
Silvery Gray
Metallic
6.00
2,350.00 MPa
1,960.00 MPa
3,155.00 m/s
1.38
80.00 %
-
-
-