โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Hassium
  • ๐Ÿ‡จ๐Ÿ‡ณ ๐จญ†
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Hassium
  • ๐Ÿ‡ซ๐Ÿ‡ท Hassium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Hassium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ื”ืกื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Hassio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒใƒƒใ‚ทใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Hassio
  • ๐Ÿ‡ท๐Ÿ‡บ ะฅะฐััะธะน
  • ๐Ÿ‡ช๐Ÿ‡ธ Hassio
  • ๐Ÿ‡ธ๐Ÿ‡ช Hassium

Hassium: properties of free atoms

Hassium atoms have 108 electrons and the shell structure is  2.8.18.32.32.14.2.

The ground state electron configuration of ground state gaseous neutral hassium is  [Rn].5f14.6d6.7s2 (a guess based upon that of osmium) and the term symbol is  5D4 (a guess based upon guessed electronic structure).

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

Atomic spectrum

 

A representation of the atomic spectrum of hassium.

Ionisation Energies and electron affinity

The electron affinity of hassium is (no data) kJ mol‑1. The ionisation energies of hassium are given below.

Ionisation energies of hassium
Ionisation energy number Enthalpy / kJ mol‑1
1st733 (inferred)
2nd1760
3rd2830
4th3640
5th4940
6th6180
7th7540
8th8850
9th15400
10th16800
11th19900
12th21900 (calculated)
13th24900
14th27500
15th30300
16th33900
17th35800
18th39500
Ionisation energies of hassium
Ionisation energies of hassium.

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 hassium
1s(no data)  
2s(no data) 2p(no data)  
3s(no data) 3p(no data) 3d(no data)  
4s(no data) 4p(no data) 4d(no data) 4f(no data)
5s(no data) 5p(no data) 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 hassium. 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]

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.