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Neptunium
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Actinide Series
Lanthanide Series
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Physical Properties of Neptunium
Neptunium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical
Melting Point
640.00 °C
Rank: 62 (Overall)
27
3410
👆🏻
Boiling Point
3,902.00 °C
Rank: 13 (Overall)
147
5660
👆🏻
Appearance
Physical State
Solid
Color
Silver
Luster
Metallic
Hardness
Mohs Hardness
Not Available
0.2
8.5
👆🏻
Brinell Hardness
Not Available
0.14
3490
👆🏻
Vickers Hardness
Not Available
121
3430
👆🏻
Speed of Sound
Not Available
818
16200
👆🏻
Optical Properties
Refractive Index
Not Available
1.000933
1.7229
👆🏻
Reflectivity
Not Available
58
97
👆🏻
Allotropes
✔
✘
No - Actinide Series Metals has it !
α Allotropes
Not Available
β Allotropes
Not Available
γ Allotropes
Not Available
Actinide Series
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Americium
Lawrencium
Curium
Nobelium
Protactinium
Berkelium
» More Actinide Series
Compare Actinide Series
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Americium vs Protactinium
Americium vs Berkelium
Americium vs Mendelevium
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Actinide Series
Mendelevium
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Physical
Fermium
Periodic ...
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Uses
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Physical
Actinium
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Uses
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Physical
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Compare Actinide Series
Lawrencium vs Americium
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Physical
Curium vs Americium
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Physical
Nobelium vs Americium
Periodic ...
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Physical
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