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Home > Bismuth


 

lead - bismuth - polonium
Sb

Bi
Uup  
 
 

General
Name, Symbol, Number Bismuth, Bi, 83
Chemical series Poor metals
Group, Period, Block 15 (VA), 6, pThe p-block of the periodic table of elements consists of the last six groups. In the elemental form of the p-block elements, the highest energy electron occupies a p- orbital. The p-block contains all of the nonmetals and semimetals, as well as some of t
DensityFor other meanings of density, see density (disambiguation Density (symbol: rho Greek: rho) is a measure of mass per unit of volume. The higher an object's density, the higher its mass per volume. The average density of an object equals its total mass div, Hardness 9780 kg/m3Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³, since a cubic metre of water weighs about a tonne. kg/m³" is sometimes, 2.25
AppearanceFor alternative meanings, see color (disambiguation). visual arts. Color (or colour is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view. The perception of lustrous
reddish white
Atomic properties
Atomic weightIn reference to a certain isotope of a chemical element, atomic weight (more accurately relative atomic mass though also called simply atomic mass is the mass of one atom of the isotope expressed in units atomic mass unit amu) such that the Carbon-12 isot 208.98038 amuThe atomic mass unit amu , unified atomic mass unit u , or dalton Da , is a small unit of mass used to express atomic masses and molecular masses. It is defined to be 1/12 of the mass of one atom of Carbon-12. Accordingly, :1 u 1/N gram 1/(1000 N) kg (whe
Atomic radiusAtomic radius is the distance from the atomic nucleus to the outmost stable electron orbital in a atom that is at equilibrium and is measured in picometers or Angstroms. Atomic radii are called covalent radii (a reference to the types of bonds formed) whe (calc.) 160 (143) pm
Covalent radius 146 pm
van der Waals radius no data
Electron configuration [ Xe]4 f14 5 d10 6 s2 6p3
e- 's per energy level 2, 8, 18, 32, 18, 5
Oxidation states ( Oxide) 3, 5 (mildly acidic)
Crystal structure Rhombohedral
Physical properties
State of matter Solid ( diamagnetic)
Melting point 544.4 K (520.3 ° F)
Boiling point 1837 K (2847 °F)
Molar volume 21.31 ×10-6 m3/mol
Heat of vaporization 104.8 kJ/mol
Heat of fusion 11.3 kJ/mol
Vapor pressure 0.000627 Pa at 544 K
Speed of sound 1790 m/s at 293.15 K
Miscellaneous
Electronegativity 2.02 ( Pauling scale)
Specific heat capacity 122 J/(kg×K)
Electrical conductivity 0.867 106/m ohm
Thermal conductivity 07.87 W/(m×K)
1st ionization potential 703 kJ/mol
2nd ionization potential 1610 kJ/mol
3rd ionization potential 2466 kJ/mol
4th ionization potential 4370 kJ/mol
5th ionization potential 5400 kJ/mol
6th ionization potential 8520 kJ/mol
Most stable isotopes
iso NA half-life DM DE M eV DP
207Bi {syn.} 31.55 y ε 2.399 207Pb
208Bi {syn.} 3,368,000 y ε 2.880 208Pb
209Bi 100% (1.9±0.2) ×1019y α   205 Tl
SI units & STP are used except where noted.


Bismuth is a chemical element in the periodic table 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. Most diamagnetic of all metals, bismuth has the lowest thermal conductivity of all the elements except mercury. Lead-free bismuth compounds are used in cosmetics and in medical procedures.



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