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Neodymium
Neodymium
☒

Promethium
Promethium
☒



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Neodymium
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Promethium

Physical Properties of Neodymium and Promethium
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1 Physical
1.1 Melting Point
1,010.00 °C1,042.00 °C
Physical Properties of Francium ▶ ⊕
27 3410
1.2 Boiling Point
3,127.00 °C3,000.00 °C
Physical Properties of Flerovium ▶ ⊕
147 5660
1.5 Appearance
1.5.1 Physical State
Solid
Solid
2.1.2 Color
Silvery White
Unknown
2.1.3 Luster
Metallic
Metallic
2.2 Hardness
2.2.1 Mohs Hardness
NANA
Physical Properties of Cesium ▶ ⊕
0.2 8.5
2.2.4 Brinell Hardness
265.00 MPaNA
Physical Properties of Cesium ▶ ⊕
0.14 3490
2.3.3 Vickers Hardness
345.00 MPaNA
Physical Properties of Palladium ▶ ⊕
121 3430
2.4 Speed of Sound
2,330.00 m/sNA
Physical Properties of Thallium ▶ ⊕
818 16200
2.5 Optical Properties
2.5.1 Refractive Index
NANA
Physical Properties of Mercury ▶ ⊕
1.000933 1.7229
2.5.2 Reflectivity
NANA
Physical Properties of Molybdenum ▶ ⊕
58 97
2.6 Allotropes
✔ ✘
✔ ✘
2.6.1 α Allotropes
Not Available
Not Available
2.6.3 β Allotropes
Not Available
Not Available
2.6.4 γ Allotropes
Not Available
Not Available

Compare Lanthanide Series » More

Neodymium MetalLanthanum Metal
Neodymium vs Lanthanum
Neodymium MetalPromethium Electron Configuration
Neodymium vs Promethium
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