Nihonium atoms have 113 electrons and theshell structure is  2.8.18.32.32.18.3.

Theground state electron configuration of ground state gaseous neutral nihonium is  [Rn].5f¹⁴.6d¹⁰.7s².7p¹ (a guess based upon that of thallium) and theterm symbol is ²P_1/2 (a guess based upon guessed electronic structure).

Atomic spectrum

A representation of the atomic spectrum of nihonium.

Ionisation Energies and electron affinity

Theelectron affinity of nihonium is (no data) kJ mol^‑1. Theionisation energies of nihonium are given below.

Ionisation energies of nihonium

Ionisation energy number	Enthalpy / kJ mol‑1
1st	705

Effective Nuclear Charges

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

References

These effective nuclear charges,Z_eff, 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

Notes

I am grateful toGwyn 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.) inChemical 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.