โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Roentgenium
  • ๐Ÿ‡บ๐Ÿ‡ฆ ะ ะตะฝั‚ะณะตะฝั–ะน
  • ๐Ÿ‡จ๐Ÿ‡ณ ้Œ€
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Roentgenium
  • ๐Ÿ‡ซ๐Ÿ‡ท Roentgenium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Roentgenium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืจื ื˜ื’ื ื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Roentgenio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒฌใƒณใƒˆใ‚ฒใƒ‹ใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Roentgenio
  • ๐Ÿ‡ช๐Ÿ‡ธ Roentgenio
  • ๐Ÿ‡ธ๐Ÿ‡ช Roentgenium
  • ๐Ÿ‡ท๐Ÿ‡บ ะ ะตะฝั‚ะณะตะฝะธะน

Roentgenium - 111Rg: properties of free atoms

Roentgenium atoms have 111 electrons and the shell structure is  2.8.18.32.32.18.1.

The ground state electron configuration of ground state gaseous neutral roentgenium is  [Rn].5f14.6d10.7s1 (a guess based upon that of gold) and the term symbol is  2S1/2 (a guess based upon guessed electronic structure).

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

Atomic spectrum

 

A representation of the atomic spectrum of roentgenium.

Ionisation Energies and electron affinity

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

Ionisation energies of roentgenium
Ionisation energy number Enthalpy / kJ mol‑1
1st1023
Ionisation energies of roentgenium
Ionisation energies of roentgenium.

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 roentgenium
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 roentgenium. 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.