Alphabetical Electron Configuration List of Elements

This is an alphabetical electron configuration list of all the elements of the periodic table. While the electronic structure of the lighter elements is well-studied, once you get to the heavier man-made elements, these configurations are predicted or calculated based on periodic table trends. Configurations are estimated from dubnium (element 105) up to ununoctium (element 118).

Noble Gas Core Notation Used

Note the configurations are listed using the noble gas core notation. So, for example, neon is written using this shorthand as [He]2s²2p⁶ rather than 1s²2s²2p⁶. The electron configurations of the newly discovered super-heavy elements are predicted. Electrons travel at relativistic speeds in these atoms, so unusual behavior might occur.

You may also view the electron configurations of the first 104 elements in order of atomic number.

Actinium to Curium

Actinium - [Rn]6d¹7s²
Aluminum - [Ne]3s²3p¹
Americium - [Rn]5f⁷7s²
Antimony - [Kr]4d¹⁰5s²5p³
Argon - [Ne]3s²3p⁶
Arsenic - [Ar]3d¹⁰4s²4p³
Astatine - [Xe]4f¹⁴5d¹⁰6s²6p⁵
Barium - [Xe]6s²
Berkelium - [Rn]5f⁹7s²
Beryllium - [He]2s²
Bismuth - [Xe]4f¹⁴5d¹⁰6s²6p³
Bohrium - [Rn]5f¹⁴6d⁵7s²
Boron - [He]2s²2p¹
Bromine - [Ar]3d¹⁰4s²4p⁵
Cadmium - [Kr]4d¹⁰5s²
Calcium - [Ar]4s²
Californium - [Rn]5f¹⁰7s²
Carbon - [He]2s²2p²
Cerium - [Xe]4f¹5d¹6s²
Cesium - [Xe]6s¹
Chlorine - [Ne]3s²3p⁵
Chromium - [Ar]3d⁵4s¹
Cobalt - [Ar]3d⁷4s²
Copernicium (formerly ununbium) - [Rn]5f¹⁴6d¹⁰7s²
Copper - [Ar]3d¹⁰4s¹
Curium - [Rn]5f⁷6d¹7s²

Darmstadtium to Hydrogen

Darmstadtium - [Rn]5f¹⁴6d⁹7s¹
Dubnium - [Rn]5f¹⁴6d³7s²
Dysprosium - [Xe]4f¹⁰6s²
Einsteinium - [Rn]5f¹¹7s²
Erbium - [Xe]4f¹²6s²
Europium - [Xe]4f⁷6s²
Fermium - [Rn]5f¹²7s²
Flerovium (formerly ununquadium) - [Rn]5f¹⁴6d¹⁰7s²7p²
Fluorine - [He]2s²2p⁵
Francium - [Rn]7s¹
Gadolinium - [Xe]4f⁷5d¹6s²
Gallium - [Ar]3d¹⁰4s²4p¹
Germanium - [Ar]3d¹⁰4s²4p²
Gold - [Xe]4f¹⁴5d¹⁰6s¹
Hafnium - [Xe]4f¹⁴5d²6s²
Hassium - [Rn]5f¹⁴6d⁶7s²
Helium - 1s²
Holmium - [Xe]4f¹¹6s²
Hydrogen - 1s¹

Indium to Moscovium

Indium - [Kr]4d¹⁰5s²5p¹
Iodine - [Kr]4d¹⁰5s²5p⁵
Iridium - [Xe]4f¹⁴5d⁷6s²
Iron - [Ar]3d⁶4s²
Krypton - [Ar]3d¹⁰4s²4p⁶
Lanthanum - [Xe]5d¹6s²
Lawrencium - [Rn]5f¹⁴7s²7p¹
Lead - [Xe]4f¹⁴5d¹⁰6s²6p²
Lithium - [He]2s¹
Livermorium (formerly ununhexium) - [Rn]5f¹⁴6d¹⁰7s²7p⁴
Lutetium - [Xe]4f¹⁴5d¹6s²
Magnesium - [Ne]3s²
Manganese - [Ar]3d⁵4s²
Meitnerium - [Rn]5f¹⁴6d⁷7s²
Mendelevium - [Rn]5f¹³7s²
Mercury - [Xe]4f¹⁴5d¹⁰6s²
Molybdenum - [Kr]4d⁵5s¹
Moscovium - [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³ (predicted)

Neodymium to Protactinium

Neodymium - [Xe]4f⁴6s²
Neon - [He]2s²2p⁶
Neptunium - [Rn]5f⁴6d¹7s²
Nickel - [Ar]3d⁸4s²
Nihonium - [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹ (predicted)
Niobium - [Kr]4d⁴5s¹
Nitrogen - [He]2s²2p³
Nobelium - [Rn]5f¹⁴7s²s²
Oganesson - [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶ (predicted)
Osmium - [Xe]4f¹⁴5d⁶6s²
Oxygen - [He]2s²2p⁴
Palladium - [Kr]4d¹⁰
Phosphorus - [Ne]3s²3p³
Platinum - [Xe]4f¹⁴5d⁹6s¹
Plutonium - [Rn]5f⁶7s²
Polonium - [Xe]4f¹⁴5d¹⁰6s²6p⁴
Potassium - [Ar]4s¹
Praseodymium - [Xe]4f³6s²
Promethium - [Xe]4f⁵6s²
Protactinium - [Rn]5f²6d¹7s²

Radium to Tungsten

Radium - [Rn]7s²
Radon - [Xe]4f¹⁴5d¹⁰6s²6p⁶
Rhenium - [Xe]4f¹⁴5d⁵6s²
Rhodium - [Kr]4d⁸5s¹
Roentgenium - [Rn]5f¹⁴6d¹⁰7s¹
Rubidium -   [Kr]5s¹
Ruthenium -   [Kr]4d⁷5s¹
Rutherfordium - [Rn]5f¹⁴6d²7s²
Samarium - [Xe]4f⁶6s²
Scandium - [Ar]3d¹4s²
Seaborgium - [Rn]5f¹⁴6d⁴7s²
Selenium - [Ar]3d¹⁰4s²4p⁴
Silicon - [Ne]3s²3p²
Silver - [Kr]4d¹⁰5s¹
Sodium - [Ne]3s¹
Strontium - [Kr]5s²
Sulfur - [Ne]3s²3p⁴
Tantalum - [Xe]4f¹⁴5d³6s²
Technetium - [Kr]4d⁵5s²
Tellurium - [Kr]4d¹⁰5s²5p⁴
Tennessine - [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵ (predicted)
Terbium - [Xe]4f⁹6s²
Thallium - [Xe]4f¹⁴5d¹⁰6s²6p¹
Thorium - [Rn]6d²7s²
Thulium - [Xe]4f¹³6s²
Tin - [Kr]4d¹⁰5s²5p²
Titanium - [Ar]3d²4s²
Tungsten - [Xe]4f¹⁴5d⁴6s²s²

Ununoctium to Zirconium

Ununoctium - [Rn]5f¹⁴6d¹⁰7s²7p⁶
Ununpentium - [Rn]5f¹⁴6d¹⁰7s²7p³
Ununseptium - [Rn]5f¹⁴6d¹⁰7s²7p⁵
Ununtrium - [Rn]5f¹⁴6d¹⁰7s²7p1
Uranium - [Rn]5f³6d¹7s²
Vanadium - [Ar]3d³4s²
Xenon - [Kr]4d¹⁰5s²5p⁶
Ytterbium - [Xe]4f¹⁴6s²
Yttrium - [Kr]4d¹5s²
Zinc - [Ar]3d¹⁰4s²
Zirconium - [Kr]4d²5s²

Reference: Element data from Wolfram Alpha, retrieved 06/09/2015