Metals
- Elements List
- Aluminium, Al
- Antimony, Sb
- Arsenic, As
- Barium, Ba
- Beryllium, Be
- Bismuth, Bi
- Boron, B
- Cadmium, Cd
- Calcium, Ca
- Carbon, C (Graphite)
- Cerium, Ce
- Cesium, Cs
- Chromium, Cr
- Cobalt, Co
- Copper, Cu
- Dysprosium, Dy
- Erbium, Er
- Europium, Eu
- Gadolinium, Gd
- Gallium, Ga
- Germanium, Ge
- Gold, Au
- Hafnium, Hf
- Holmium, Ho
- Indium, In
- Iridium, Ir
- Iron, Fe
- Lanthanum, La
- Lead, Pb
- Lithium, Li
- Lutetium, Lu
- Magnesium, Mg
- Manganese, Mn
- Mercury, Hg
- Molybdenum, Mo
- Neodymium, Nd
- Nickel, Ni
- Niobium, Nb
- Osmium, Os
- Palladium, Pd
- Phosphorus, P
- Platinum, Pt
- Potassium, K
- Praseodymium, Pr
- Rhenium, Re
- Rhodium, Rh
- Rubidium, Rb
- Ruthenium, Ru
- Samarium, Sm
- Scandium, Sc
- Selenium, Se
- Silicon, Si
- Silver, Ag
- Sodium, Na
- Strontium, Sr
- Sulphur, S
- Tantalum, Ta
- Tellurium, Te
- Terbium, Tb
- Thallium, Tl
- Thorium, Th
- Thulium, Tm
- Tin, Sn
- Titanium, Ti
- Tungsten, W
- Vanadium, V
- Ytterbium, Yb
- Yttrium, Y
- Zinc, Zn
- Zirconium, Zr
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Neodymium, Nd
Description
Neodymium is a chemical element with the symbol Nd and atomic number 60.
Neodymium, a rare earth metal, is present in Mischmetal to the extent of about 18%. The metal has a bright, silvery metallic luster, however, as one of the more reactive rare earth metals, it quickly tarnishes in air. The tarnishing forms an oxide layer that falls off, which exposes the metal to further oxidation. Although it belongs to "rare earth metals," neodymium is not rare at all. It constitutes 38 ppm of Earth’s crust.
Available Forms:
| Technical Data | ||||||||
| Symbol | Nd | Density (25°C)/gcm3 | 7.003 | |||||
| Atomic number | 60 | Melting point / °C | 1024 | |||||
| No. of naturally occurring isotopes | 7 | Boiling point / °C | -3027 | |||||
| Atomic weight | 144.24(+/-3) | ΔHfus/kJmol-1 | 7.13 | |||||
| Outer electron configuration | 4f4s2 | ΔHvap/kJmol-1 | 289 | |||||
| Metal radius(6-coordinate)/pm | 181.4 | ΔHf(monoatomic gas)/kJmol-1 | 328 | |||||
| Ionic radius(6-coordinate)/pm III | 98.3 | ΔH(hydration Ln 3+)/kJmol-1 | 3442 | |||||
| Ionic radius(6-coordinate)/pm II | 129 | Ionization energy/kJmol-1 I | 530 | |||||
| Electrical resistivity (20°C)/μohm cm | 64 | Ionization energy/kJmol-1 II | 1034 | |||||
| Eo(M3+(aq)+ 3e- →M(S))/V | -2.431 | Ionization energy/kJmol-1 III | 2128 | |||||
| Evaporation Techniques | ||||||||
| Temperature (oC) @Vap. Pressure | Techniques | Remarks | ||||||
| 10-8 Torr | 10-6 Torr | 10-4 Torr | Electron Beam | Crucible | Coil | Boat | ||
| 731 | 871 | 1062 | Excellent | Al2O3 | - | Tantalum | Low Tantalum solubility Go to Evaporation Sources Page | |
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