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Physical Properties of Promethium and Neptunium
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Promethium
Neptunium
Physical Properties of Neptunium and Promethium
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical Properties
Melting Point
1,042.00 °C
99+
640.00 °C
99+
Boiling Point
3,000.00 °C
31
3,902.00 °C
13
Appearance
Physical State
Solid
Solid
Color
Unknown
Silver
Luster
Metallic
Metallic
Hardness
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
Chemical >>
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Compare Lanthanide Series
Promethium vs Holmium
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