- 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
Yttrium, Y
Description
Yttrium, is a chemical element that has the symbol Y and atomic number 39. A silvery metallic transition metal, yttrium is common in rare-earth minerals and two of its compounds are used to make the red color phosphors in cathode ray tube displays, such as those used for televisions.
Yttrium is a silver-metallic, lustrous rare earth metal that is relatively stable in air, strongly resembles scandium in appearance, and chemically resembles the lanthanides, and can appear to gain a slight pink lustre on exposure to light. Shavings or turnings of the metal can ignite in air when they exceed 400 °C. When yttrium is finely divided, it is very unstable in air. The metal has a low neutron cross-section for nuclear capture. The common oxidation state of yttrium is +3.
Available Forms:
| Technical Data | ||||||||
| Symbol | Y | Density (20°C)/gcm3 | 4.5 | |||||
| Atomic number | 39 | Melting point /°C | 1530 | |||||
| No. of naturally occurring isotopes | 1 | Boiling point /°C | 3264 | |||||
| Atomic weight | 88.9059 | ΔHfus/kJmol-1 | 11.5 | |||||
| Electronic configuration | [Kr]4d15s2 | ΔHvap/kJmol-1 | 367 | |||||
| Metal radius(12-coordinate)/pm | 180 | ΔHf(monoatomic gas)/kJmol-1 | 425(+/-8) | |||||
| Ionic radius(6-coordinate)/pm | 90 | Electrical resistivity | ||||||
| Ionization energy/kJmol-1 I | 616 | (20°C)/μohm cm | 57-70 | |||||
| Ionization energy/kJmol-1 II | 1181 | Electronegativity χ | 1.2 | |||||
| Ionization energy/kJmol-1 III | 1980 | E° (M3+(aq)\ + 3e- →M(s))/V | -2.372 | |||||
| Evaporation Techniques | ||||||||
| Temperature (oC) @Vap. Pressure | Techniques | Remarks | ||||||
| 10-8 Torr | 10-6 Torr | 10-4 Torr | Electron Beam | Crucible | Coil | Boat | ||
| 830 | 973 | 1157 | Excellent | Al2O3 | Tungsten | Tungsten & Tantalum | High Tantalum Solubility Go to Evaporation Sources Page | |
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