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Promethium
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Actinide Series
Lanthanide Series
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Alkali Metals
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Physical Properties of Promethium
Promethium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical
Melting Point
1,042.00 °C
Rank: 43 (Overall)
-38.83
3410
👆🏻
Boiling Point
3,000.00 °C
Rank: 32 (Overall)
0
5660
👆🏻
Appearance
Physical State
Solid
Color
-
Luster
Metallic
Hardness
Mohs Hardness
-
0.2
8.5
👆🏻
Brinell Hardness
400.00 MPa
Rank: 34 (Overall)
0.14
3490
👆🏻
Vickers Hardness
600.00 MPa
Rank: 28 (Overall)
0
3920
👆🏻
Speed of Sound
2,260.00 m/s
Rank: 58 (Overall)
818
16200
👆🏻
Optical Properties
Refractive Index
1.70
Rank: 27 (Overall)
0.155
3.41
👆🏻
Reflectivity
63.00 %
Rank: 20 (Overall)
5
97
👆🏻
Allotropes
✔
✘
No - Lanthanide Series Metals has it !
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Lanthanide Series
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