Neodymium
Neodymium General
| Name:Neodymium | Symbol:Nd |
| Type:Rare Earth, Lanthanides | Atomic weight:144.24 |
| Density @ 293 K:7.0 g/cm3 | Atomic volume:20.6 cm3/mol |
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Discovered:
1885 |
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Neodymium States
| State (s, l, g):solid | |
| Melting point:1283.2 K | Boiling point:3300 K |
Neodymium Energies
| Specific heat capacity:0.19 J/gK | Heat of atomization:328 kJ/mole atoms |
| Heat of fusion:7.140 kJ/mol | Heat of vaporization :273.0 kJ/mol |
| 1st ionization energy:529.6 kJ/mole | 2nd ionization energy:1035 kJ/mole |
| 3rd ionization energy:2130 kJ/mole | Electron affinity:50 kJ/mole |
Neodymium Oxidation & Electrons
| Shells:2,8,18,22,8,2 | Electron configuration:[Xe] 4f4 6s2 |
| Minimum oxidation number:0 | Maximum oxidation number:3 |
| Min. common oxidation no.:0 | Max. common oxidation no.:3 |
| Electronegativity (Pauling Scale):1.14 | Polarizability volume:31.4 Å3 |
Neodymium Appearance & Characteristics
| Structure:cp: close packed (ABCB) | Color:silvery-white |
| Hardness:mohs | |
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Harmful effects:
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Characteristics:
Uses: alloys, Welder's mask |
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Neodymium Reactions
| Reaction with air:vigorous, w/ht => Nd2O3 | Reaction with 6 M HCl:mild, => H2, NdCl3 |
| Reaction with 15 M HNO3:mild, => Nd(NO3 )3 | Reaction with 6 M NaOH: |
Neodymium Compounds
| Oxide(s):Nd2O3 | Chloride(s):NdCl2 NdCl3 |
| Hydride(s):NdH2 NdH3 |
Neodymium Radius
| Atomic radius:181 pm | Ionic radius (1+ ion):pm |
| Ionic radius (2+ ion):pm | Ionic radius (3+ ion):112.3 pm |
| Ionic radius (2- ion):pm | Ionic radius (1- ion):pm |
Neodymium Conductivity
| Thermal conductivity:16.5 J/m-sec-deg | Electrical conductivity:15.4 1/mohm-cm |
Neodymium Abundance & Isotopes
| Abundance earth's crust:1.4 log | |
| Abundance solar system:-0.082 log | |
| Cost, pure: $320 per 100g | |
| Cost, bulk:$5 per 100g | |
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Source:
Monazite(phosphate),bastnaesite |
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Isotopes:
7 |
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Neodymium Other
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Other:
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