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Protactinium
Protactinium

Silver
Silver



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Protactinium
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Silver

Physical Properties of Protactinium and Silver

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 %
-
-
-
 
961.93 °C
2,212.00 °C
Solid
Silvery White
Metallic
2.50
251.00 MPa
229.00 MPa
2,680.00 m/s
0.16
97.00 %
-
-
-