广东快乐十分开奖结果

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Bi

Bismuth广东快乐十分开奖结果 is a chemical element that has the symbol Bi and atomic number 83. This heavy, brittle, white crystalline trivalent poor metal has a pink tinge and chemically resembles arsenic and antimony. Of all the metals, it is the most naturally diamagnetic, and only mercury has a lower thermal conductivity.

Bismuth compounds are used in cosmetics and in medical procedures. As the toxicity of lead has become more apparent in recent years, alloy uses for bismuth metal as a replacement for lead have become an increasing part of bismuth's commercial importance.

TECHNICAL DATA
SymbolBiDensity (25°C)/gcm-39.808
Atomic number83Melting point /°C271.4
Atomic weight208.9804Boiling point /°C1564
Electronic configuration[Xe] 4f45d106s26p3rcov(MIII single bond)/pm150
Ionization energy/MJmol-1 I0.703rionic(6-coordinate)( MIII)/pm103
II1.61(6-coordinate)(MV)/pm76
III2.466Hardness (Mohs)
Sum (I+II+III)/MJmol''4.779Electrical resistivity
Sum (IV+V)/MJmol'9.779(20°C)/ μohm cm120
Electronegativity χ1.9Contraction on freezing/%-3.32
EVAPORATION TECHNIQUES
Temperature (oC) @Vap. PressureTechniquesRemarks
10-8Torr10-6Torr10-4TorrElectron BeamCrucibleCoilBoat
330410520ExcellentAl2O3 & Vitreous GraphiteTungstenMolybdenum, Tantalum, Al2O3 & TungstenVapors are toxic, High resistivity. No shorting of baskets



Bi
Sputtering Targets
Matierial SymbolAtomic Number     Thermal Conductivity         Theoretical Density 
W/m.K           g/cc
Bismuth_BiBi8389.8


广东快乐十分开奖结果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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