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Gadolinium
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Promethium
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Transition Metals
Actinide Series
Lanthanide Series
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Gadolinium
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Promethium
Physical Properties of Gadolinium and Promethium
Gadolinium
Promethium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical
Melting Point
1,311.00 °C
1,042.00 °C
-38.83
3410
👆🏻
Boiling Point
3,233.00 °C
3,000.00 °C
0
5660
👆🏻
Appearance
Physical State
Solid
Solid
Color
Silvery White
-
Luster
Metallic
Metallic
Hardness
Mohs Hardness
4.50
-
0.2
8.5
👆🏻
Brinell Hardness
700.00 MPa
400.00 MPa
0.14
3490
👆🏻
Vickers Hardness
510.00 MPa
600.00 MPa
0
3920
👆🏻
Speed of Sound
2,680.00 m/s
2,260.00 m/s
818
16200
👆🏻
Optical Properties
Refractive Index
1.97
1.70
0.155
3.41
👆🏻
Reflectivity
59.00 %
63.00 %
5
97
👆🏻
Allotropes
✔
✘
✔
✘
α Allotropes
-
-
β Allotropes
-
-
γ Allotropes
-
-
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