Electron configuration of Lanthanum (La)

Elements hub Start from the periodic-table families and move to individual configurations. Electron configuration calculator Check a classroom configuration and see the shell-by-shell reading. Orbital diagram guide Translate a configuration into boxes, arrows, and paired electrons. Valence electrons guide Use the outer shell to predict bonding patterns and common ions.

Electron configuration of Actinium (Ac) Read the Actinium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ac. Electron configuration of Aluminium (Al) Read the Aluminium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Al. Electron configuration of Americium (Am) Read the Americium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Am. Electron configuration of Antimony (Sb) Read the Antimony electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Sb. Electron configuration of Argon (Ar) Read the Argon electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ar. Electron configuration of Arsenic (As) Read the Arsenic electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing As. Electron configuration of Astatine (At) Read the Astatine electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing At. Electron configuration of Barium (Ba) Read the Barium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ba. Electron configuration of Berkelium (Bk) Read the Berkelium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Bk. Electron configuration of Beryllium (Be) Read the Beryllium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Be. Electron configuration of Bismuth (Bi) Read the Bismuth electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Bi. Electron configuration of Bohrium (Bh) Read the Bohrium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Bh. Electron configuration of Boron (B) Read the Boron electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing B. Electron configuration of Bromine (Br) Read the Bromine electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Br. Electron configuration of Cadmium (Cd) Read the Cadmium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cd. Electron configuration of Caesium (Cs) Read the Caesium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cs. Electron configuration of Calcium (Ca) Read the Calcium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ca. Electron configuration of Californium (Cf) Read the Californium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cf. Electron configuration of Carbon (C) Read the Carbon electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing C. Electron configuration of Cerium (Ce) Read the Cerium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ce. Electron configuration of Chlorine (Cl) Read the Chlorine electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cl. Electron configuration of Chromium (Cr) Read the Chromium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cr. Includes the Cr 4s1 3d5 exception and common ion questions. Electron configuration of Cobalt (Co) Read the Cobalt electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Co. Electron configuration of Copernicium (Cn) Read the Copernicium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cn. Electron configuration of Copper (Cu) Read the Copper electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cu. Includes the Cu exception and common ion questions. Electron configuration of Curium (Cm) Read the Curium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Cm. Electron configuration of Darmstadtium (Ds) Read the Darmstadtium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ds. Electron configuration of Dubnium (Db) Read the Dubnium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Db. Electron configuration of Dysprosium (Dy) Read the Dysprosium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Dy. Electron configuration of Einsteinium (Es) Read the Einsteinium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Es. Electron configuration of Erbium (Er) Read the Erbium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Er. Electron configuration of Europium (Eu) Read the Europium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Eu. Electron configuration of Fermium (Fm) Read the Fermium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Fm. Electron configuration of Flerovium (Fl) Read the Flerovium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Fl. Electron configuration of Fluorine (F) Read the Fluorine electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing F. Electron configuration of Francium (Fr) Read the Francium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Fr. Electron configuration of Gadolinium (Gd) Read the Gadolinium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Gd. Electron configuration of Gallium (Ga) Read the Gallium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ga. Electron configuration of Germanium (Ge) Read the Germanium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ge. Electron configuration of Gold (Au) Read the Gold electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Au. Includes the Au group 11 exception similar to Cu and Ag. Electron configuration of Hafnium (Hf) Read the Hafnium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Hf. Electron configuration of Hassium (Hs) Read the Hassium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Hs. Electron configuration of Helium (He) Read the Helium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing He. Electron configuration of Holmium (Ho) Read the Holmium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ho. Electron configuration of Hydrogen (H) Read the Hydrogen electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing H. Electron configuration of Indium (In) Read the Indium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing In. Electron configuration of Iodine (I) Read the Iodine electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing I. Electron configuration of Iridium (Ir) Read the Iridium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ir. Electron configuration of Iron (Fe) Read the Iron electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Fe. Electron configuration of Krypton (Kr) Read the Krypton electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Kr. Electron configuration of Lanthanum (La) Read the Lanthanum electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing La. Electron configuration of Lawrencium (Lr) Read the Lawrencium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Lr. Electron configuration of Lead (Pb) Read the Lead electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pb. Electron configuration of Lithium (Li) Read the Lithium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Li. Electron configuration of Livermorium (Lv) Read the Livermorium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Lv. Electron configuration of Lutetium (Lu) Read the Lutetium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Lu. Electron configuration of Magnesium (Mg) Read the Magnesium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Mg. Electron configuration of Manganese (Mn) Read the Manganese electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Mn. Electron configuration of Meitnerium (Mt) Read the Meitnerium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Mt. Electron configuration of Mendelevium (Md) Read the Mendelevium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Md. Electron configuration of Mercury (Hg) Read the Mercury electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Hg. Electron configuration of Molybdenum (Mo) Read the Molybdenum electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Mo. Includes the Mo 4d5 5s1 exception. Electron configuration of Moscovium (Mc) Read the Moscovium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Mc. Electron configuration of Neodymium (Nd) Read the Neodymium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Nd. Electron configuration of Neon (Ne) Read the Neon electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ne. Electron configuration of Neptunium (Np) Read the Neptunium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Np. Electron configuration of Nickel (Ni) Read the Nickel electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ni. Electron configuration of Nihonium (Nh) Read the Nihonium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Nh. Electron configuration of Niobium (Nb) Read the Niobium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Nb. Includes the Nb 4d4 5s1 exception. Electron configuration of Nitrogen (N) Read the Nitrogen electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing N. Electron configuration of Nobelium (No) Read the Nobelium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing No. Electron configuration of Oganesson (Og) Read the Oganesson electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Og. Electron configuration of Osmium (Os) Read the Osmium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Os. Electron configuration of Oxygen (O) Read the Oxygen electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing O. Electron configuration of Palladium (Pd) Read the Palladium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pd. Includes the Pd 4d10 exception — no 5s electrons. Electron configuration of Phosphorus (P) Read the Phosphorus electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing P. Electron configuration of Platinum (Pt) Read the Platinum electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pt. Electron configuration of Plutonium (Pu) Read the Plutonium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pu. Electron configuration of Polonium (Po) Read the Polonium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Po. Electron configuration of Potassium (K) Read the Potassium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing K. Electron configuration of Praseodymium (Pr) Read the Praseodymium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pr. Electron configuration of Promethium (Pm) Read the Promethium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pm. Electron configuration of Protactinium (Pa) Read the Protactinium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Pa. Electron configuration of Radium (Ra) Read the Radium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ra. Electron configuration of Radon (Rn) Read the Radon electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Rn. Electron configuration of Rhenium (Re) Read the Rhenium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Re. Electron configuration of Rhodium (Rh) Read the Rhodium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Rh. Includes the Rh 4d8 5s1 exception. Electron configuration of Roentgenium (Rg) Read the Roentgenium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Rg. Electron configuration of Rubidium (Rb) Read the Rubidium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Rb. Electron configuration of Ruthenium (Ru) Read the Ruthenium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ru. Electron configuration of Rutherfordium (Rf) Read the Rutherfordium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Rf. Electron configuration of Samarium (Sm) Read the Samarium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Sm. Electron configuration of Scandium (Sc) Read the Scandium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Sc. Electron configuration of Seaborgium (Sg) Read the Seaborgium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Sg. Electron configuration of Selenium (Se) Read the Selenium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Se. Electron configuration of Silicon (Si) Read the Silicon electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Si. Electron configuration of Silver (Ag) Read the Silver electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ag. Electron configuration of Sodium (Na) Read the Sodium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Na. Electron configuration of Strontium (Sr) Read the Strontium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Sr. Electron configuration of Sulfur (S) Read the Sulfur electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing S. Electron configuration of Tantalum (Ta) Read the Tantalum electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ta. Electron configuration of Technetium (Tc) Read the Technetium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Tc. Electron configuration of Tellurium (Te) Read the Tellurium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Te. Electron configuration of Tennessine (Ts) Read the Tennessine electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ts. Electron configuration of Terbium (Tb) Read the Terbium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Tb. Electron configuration of Thallium (Tl) Read the Thallium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Tl. Electron configuration of Thorium (Th) Read the Thorium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Th. Electron configuration of Thulium (Tm) Read the Thulium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Tm. Electron configuration of Tin (Sn) Read the Tin electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Sn. Electron configuration of Titanium (Ti) Read the Titanium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Ti. Electron configuration of Tungsten (W) Read the Tungsten electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing W. Electron configuration of Uranium (U) Read the Uranium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing U. Electron configuration of Vanadium (V) Read the Vanadium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing V. Electron configuration of Xenon (Xe) Read the Xenon electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Xe. Electron configuration of Ytterbium (Yb) Read the Ytterbium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Yb. Electron configuration of Yttrium (Y) Read the Yttrium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Y. Electron configuration of Zinc (Zn) Read the Zinc electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Zn. Electron configuration of Zirconium (Zr) Read the Zirconium electron configuration, noble-gas shorthand, valence shell, orbital filling logic, and the mistakes to avoid when writing Zr.