广东快乐十分开奖结果

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Mo

Molybdenum广东快乐十分开奖结果 (from the Greek meaning "lead-like"), is a Group 6 chemical element with the symbol Mo and atomic number 42. It has the sixth-highest melting point of any element, and for this reason it is often used in high-strength steel alloys. Molybdenum is found in trace amounts in plants and animals, although excess molybdenum can be toxic in some animals. Molybdenum was discovered in 1778 by Carl Wilhelm Scheele and first isolated in 1781 by Peter Jacob Hjelm.

TECHNICAL DATA
SymbolMoMelting point /°C1620
Atomic number42Boiling point /°C4650
No. of naturally occurring isotopes7ΔHfus/kJmol-128(+/-3)
Atomic weight95.94ΔHvap/kJmol-1590(+/-21)
Electronic configuration[Kr]4d5s7ΔHf(monoatomic gas)/kJmol-1664(+/-13)
Metal radius( 12-coordinate)/pm139Electrical resistivity (20°C)/μohm cm~5
Ionic radius(6-coordinate)/pm VI59Electronegativity χ1.8
Ionic radius(6-coordinate)/pm V61Ionization energy/kJmol-1 I685
Ionic radius(6-coordinate)/pm IV65Ionization energy/kJmol-1 II1558
Ionic radius(6-coordinate)/pm III69Ionization energy/kJmol-1 III2621
Density (20°C)/gcm-310.28

EVAPORATION TECHNIQUES
Temperature (oC) @Vap. PressureTechniquesRemarks
10-8 Torr10-6 Torr10-4 TorrElectron BeamCrucibleCoilBoat
159218222117Excellent---Films smooth, hard. Careful degas required.




Mo
Sputtering Targets
Matierial SymbolAtomic Number     Thermal Conductivity         Theoretical Density 
W/m.K           g/cc
Molybdenum_Mo Mo4213910.2
Evaporation Materials
Matierial SymbolAtomic Number     Thermal Conductivity         Theoretical Density 
W/m.Kg/cc
Mo ( pellets ) Mo4213910.2


Below is the periodic table of chemical elements.The elements in red are the ones Nexteck's product contain. Click them, you will come to the details.

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