โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Tellurium
  • ๐Ÿ‡จ๐Ÿ‡ณ ็ขฒ
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Telluur
  • ๐Ÿ‡ซ๐Ÿ‡ท Tellure
  • ๐Ÿ‡ฉ๐Ÿ‡ช Tellur
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ื˜ืœื•ืจื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Tellurio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒ†ใƒซใƒซ
  • ๐Ÿ‡ต๐Ÿ‡น Telúrio
  • ๐Ÿ‡ท๐Ÿ‡บ ะขะตะปะปัƒั€
  • ๐Ÿ‡ช๐Ÿ‡ธ Teluro
  • ๐Ÿ‡ธ๐Ÿ‡ช Tellur

Tellurium: properties of free atoms

Tellurium atoms have 52 electrons and the shell structure is  2.8.18.18.6.

The ground state electron configuration of ground state gaseous neutral tellurium is  [Kr].4d10.5s2.5p4 and the term symbol is  3P2.

Kossel shell structure of tellurium
Schematic electronic configuration of tellurium.
Kossel shell structure of tellurium
The Kossel shell structure of tellurium.

Atomic spectrum

 

A representation of the atomic spectrum of tellurium.

Ionisation Energies and electron affinity

The electron affinity of tellurium is 190.2 kJ mol‑1. The ionisation energies of tellurium are given below.

Ionisation energies of tellurium
Ionisation energy number Enthalpy / kJ mol‑1
1st869.30
2nd1795
3rd2686
4th3610.05
5th5722
6th6667
7th11980
8th13800
9th16110
10th18440
11th20740
12th23640 (calculated)
13th26200
14th28800
15th31600
16th34200
17th44500
18th47400
19th50400
20th53500
21st57800
Ionisation energies of tellurium
Ionisation energies of tellurium.

Effective Nuclear Charges

The following are "Clementi-Raimondi" effective nuclear charges, Zeff. Follow the hyperlinks for more details and for graphs in various formats.

Effective nuclear charges for tellurium
1s50.96  
2s38.33 2p47.86  
3s34.00 3p34.01 3d37.84  
4s24.41 4p23.12 4d19.96 4f(no data)
5s12.54 5p10.81 5d(no data)  
6s(no data) 6p(no data)  
7s   

References

These effective nuclear charges, Zeff, are adapted from the following references:

  1. E. Clementi and D.L.Raimondi, J. Chem. Phys. 1963, 38, 2686.
  2. E. Clementi, D.L.Raimondi, and W.P. Reinhardt, J. Chem. Phys. 1967, 47, 1300.

Electron binding energies

Electron binding energies for tellurium. All values of electron binding energies are given in eV. The binding energies are quoted relative to the vacuum level for rare gases and H2, N2, O2, F2, and Cl2 molecules; relative to the Fermi level for metals; and relative to the top of the valence band for semiconductors.
Label Orbital eV [literature reference]
K 1s31814 [1]
L I2s4939 [1]
L II2p1/24612 [1]
L III2p3/24341 [1]
M I3s1006 [3]
M II3p1/2870.8 [3]
M III3p3/2820.8 [3]
M IV3d3/2583.4 [3]
M V3d5/2573 [3]
N I4s169.4 [3]
N II4p1/2103.3 [3, one-particle approximation not valid owing to short core-hole lifetime]
N III4p3/2103.3 [3, one-particle approximation not valid owing to short core-hole lifetime]
N IV4d3/241.9 [3]
N V4d5/240.4 [3]

Notes

I am grateful to Gwyn Williams (Jefferson Laboratory, Virginia, USA) who provided the electron binding energy data. The data are adapted from references 1-3. They are tabulated elsewhere on the WWW (reference 4) and in paper form (reference 5).

References

  1. J. A. Bearden and A. F. Burr, "Reevaluation of X-Ray Atomic Energy Levels," Rev. Mod. Phys., 1967, 39, 125.
  2. M. Cardona and L. Ley, Eds., Photoemission in Solids I: General Principles (Springer-Verlag, Berlin) with additional corrections, 1978.
  3. Gwyn Williams WWW table of values
  4. D.R. Lide, (Ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 81st edition, 2000.
  5. J. C. Fuggle and N. Mårtensson, "Core-Level Binding Energies in Metals," J. Electron Spectrosc. Relat. Phenom., 1980, 21, 275.