Template:Infobox terbium: Difference between revisions

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Latest revision as of 18:09, 11 November 2018

Terbium,  65Tb
Template:Infobox element/symbol-to-top-image-alt
General properties
PronunciationTemplate:Infobox element/pronunciation
Appearancesilvery white
Standard atomic weight (Ar, standard)Template:Infobox element/standard atomic weight
Mass numberTemplate:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Terbium in the periodic table
Template:Infobox element/periodic table
Atomic number (Z)65
GroupTemplate:Infobox element/group
Periodperiod 6
Blockf-block
Element categoryTemplate:Infobox element/category format
Electron configuration[Xe] 4f9 6s2
Electrons per shell
2, 8, 18, 27, 8, 2
Physical properties
Phase at STPsolid
Melting point1629 K ​(1356 °C, ​2473 °F)
Boiling point3396 K ​(3123 °C, ​5653 °F)
Density (near r.t.)8.23 g/cm3
when liquid (at m.p.)7.65 g/cm3
Heat of fusion10.15 kJ/mol
[[Enthalpy of vaporization|Heat of Template:Engvar]]391 kJ/mol
Molar heat capacity28.91 J/(mol·K)
[[Vapor pressure|Template:Engvar pressure]]
Atomic properties
Oxidation statesTemplate:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 1.2 (?)
[[Ionization energy|Template:Engvar energies]]
  • 1st: 565.8 kJ/mol
  • 2nd: 1110 kJ/mol
  • 3rd: 2114 kJ/mol
Atomic radiusempirical: 177 pm
Covalent radius194±5 pm
Template:Infobox element/spectral lines
Other properties
Crystal structureTemplate:Infobox element/crystal structure
Speed of sound thin rod2620 m/s (at 20 °C)
Thermal expansionat r.t. α, poly: 10.3 µm/(m·K)
Thermal conductivity11.1 W/(m·K)
Electrical resistivityα, poly: 1.150 µΩ·m (at r.t.)
Magnetic orderingparamagnetic at 300 K
Magnetic susceptibility+146,000·10−6 cm3/mol (273 K)[1]
Young's modulusα form: 55.7 GPa
Shear modulusα form: 22.1 GPa
Bulk modulusα form: 38.7 GPa
Poisson ratioα form: 0.261
Vickers hardness450–865 MPa
Brinell hardness675–1200 MPa
CAS Number7440-27-9
History
Namingafter Ytterby (Sweden), where it was mined
Discovery and first isolationCarl Gustaf Mosander (1843)
Main isotopes of terbium
Template:Infobox element/isotopes table
| references

Template:Infobox element/element navigation Template:Template reference list Expression error: Unrecognized word "template".

  1. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.