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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Zinc, Zn
Description
Zinc is a metallic chemical element with the symbol Zn and atomic number 30. In nonscientific context it is sometimes called spelter.
Zinc is a moderately reactive, blue gray metal that tarnishes in moist air and burns in air with a bright bluish-green flame, giving off fumes of zinc oxide. It reacts with acids, alkalis and other non-metals. If not completely pure, zinc reacts with dilute acids to release hydrogen. The one common oxidation state of zinc is +2. From 100 °C to 210 °C (212 °F to 410 °F) zinc metal is malleable and can easily be beaten into various shapes. Above 210 °C (410 °F), the metal becomes brittle and will be pulverized by beating. Zinc is nonmagnetic.
Available Forms:
| Technical Data | ||||||||
| Symbol | Zn | Density (25°C)/gcm3 | 7.14 | |||||
| Atomic number | 30 | Melting point /°C | 419.5 | |||||
| No. of naturally occurring isotopes | 5 | Boiling point /°C | 907 | |||||
| Atomic weight | 65.38 | ΔHfus/kJmol-1 | 7.28(+/-0.01) | |||||
| Electronic configuration | [Ar]3d104s2 | ΔHvap/kJmol-1 | 114.2(+/-1.7) | |||||
| Metal radius(12-coordinate)/pm | 134 | ΔHf(monoatomic gas)/kJmol-1 | 129.3(+/-2.9) | |||||
| Effective ionic radius/pm II | 74 | Electrical resistivity | ||||||
| Ionization energy/kJmol-1 I | 906.1 | (20°C)/μohm cm | 5.8 | |||||
| Ionization energy/kJmol-1 II | 1733 | Electronegativity χ | 1.6 | |||||
| Ionization energy/kJmol-1 III | 3831 | E° (M2+(aq)\ + 2e- →M(s))/V | -0.7619 | |||||
| Evaporation Techniques | ||||||||
| Temperature (oC) @Vap. Pressure | Techniques | Remarks | ||||||
| 10-8 Torr | 10-6 Torr | 10-4 Torr | Electron Beam | Crucible | Coil | Boat | ||
| 127 | 177 | 250 | Excellent | Al2O3 & Quartz | Tungsten | Molybdenum, Tungsten & Tantalum | Evaporates well under wide range of conditions. Go to Evaporation Sources Page | |
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