| | Hydrogen | {1} |  | Helium | {2} |  | Lithium | {2, 1} |  | Beryllium | {2, 2} |  | Boron | {2, 3} |  | Carbon | {2, 4} |  | Nitrogen | {2, 5} |  | Oxygen | {2, 6} |  | Fluorine | {2, 7} |  | Neon | {2, 8} |  | Sodium | {2, 8, 1} |  | Magnesium | {2, 8, 2} |  | Aluminum | {2, 8, 3} |  | Silicon | {2, 8, 4} |  | Phosphorus | {2, 8, 5} |  | Sulfur | {2, 8, 6} |  | Chlorine | {2, 8, 7} |  | Argon | {2, 8, 8} |  | Potassium | {2, 8, 8, 1} |  | Calcium | {2, 8, 8, 2} |  | Scandium | {2, 8, 9, 2} |  | Titanium | {2, 8, 10, 2} |  | Vanadium | {2, 8, 11, 2} |  | Chromium | {2, 8, 13, 1} |  | Manganese | {2, 8, 13, 2} |  | Iron | {2, 8, 14, 2} |  | Cobalt | {2, 8, 15, 2} |  | Nickel | {2, 8, 16, 2} |  | Copper | {2, 8, 18, 1} |  | Zinc | {2, 8, 18, 2} |  | Gallium | {2, 8, 18, 3} |  | Germanium | {2, 8, 18, 4} |  | Arsenic | {2, 8, 18, 5} |  | Selenium | {2, 8, 18, 6} |  | Bromine | {2, 8, 18, 7} |  | Krypton | {2, 8, 18, 8} |  | Palladium | {2, 8, 18, 18} |  | Rubidium | {2, 8, 18, 8, 1} |  | Strontium | {2, 8, 18, 8, 2} |  | Yttrium | {2, 8, 18, 9, 2} |  | Zirconium | {2, 8, 18, 10, 2} |  | Niobium | {2, 8, 18, 12, 1} |  | Molybdenum | {2, 8, 18, 13, 1} |  | Technetium | {2, 8, 18, 13, 2} |  | Ruthenium | {2, 8, 18, 15, 1} |  | Rhodium | {2, 8, 18, 16, 1} |  | Silver | {2, 8, 18, 18, 1} |  | Cadmium | {2, 8, 18, 18, 2} |  | Indium | {2, 8, 18, 18, 3} |  | Tin | {2, 8, 18, 18, 4} |  | Antimony | {2, 8, 18, 18, 5} |  | Tellurium | {2, 8, 18, 18, 6} |  | Iodine | {2, 8, 18, 18, 7} |  | Xenon | {2, 8, 18, 18, 8} |  | Cesium | {2, 8, 18, 18, 8, 1} |  | Barium | {2, 8, 18, 18, 8, 2} |  | Lanthanum | {2, 8, 18, 18, 9, 2} |  | Cerium | {2, 8, 18, 19, 9, 2} |  | Praseodymium | {2, 8, 18, 21, 8, 2} | 
 | | Neodymium | {2, 8, 18, 22, 8, 2} |  | Promethium | {2, 8, 18, 23, 8, 2} |  | Samarium | {2, 8, 18, 24, 8, 2} |  | Europium | {2, 8, 18, 25, 8, 2} |  | Gadolinium | {2, 8, 18, 25, 9, 2} |  | Terbium | {2, 8, 18, 27, 8, 2} |  | Dysprosium | {2, 8, 18, 28, 8, 2} |  | Holmium | {2, 8, 18, 29, 8, 2} |  | Erbium | {2, 8, 18, 30, 8, 2} |  | Thulium | {2, 8, 18, 31, 8, 2} |  | Ytterbium | {2, 8, 18, 32, 8, 2} |  | Lutetium | {2, 8, 18, 32, 9, 2} |  | Hafnium | {2, 8, 18, 32, 10, 2} |  | Tantalum | {2, 8, 18, 32, 11, 2} |  | Tungsten | {2, 8, 18, 32, 12, 2} |  | Rhenium | {2, 8, 18, 32, 13, 2} |  | Osmium | {2, 8, 18, 32, 14, 2} |  | Iridium | {2, 8, 18, 32, 15, 2} |  | Platinum | {2, 8, 18, 32, 17, 1} |  | Gold | {2, 8, 18, 32, 18, 1} |  | Mercury | {2, 8, 18, 32, 18, 2} |  | Thallium | {2, 8, 18, 32, 18, 3} |  | Lead | {2, 8, 18, 32, 18, 4} |  | Bismuth | {2, 8, 18, 32, 18, 5} |  | Polonium | {2, 8, 18, 32, 18, 6} |  | Astatine | {2, 8, 18, 32, 18, 7} |  | Radon | {2, 8, 18, 32, 18, 8} |  | Francium | {2, 8, 18, 32, 18, 8, 1} |  | Radium | {2, 8, 18, 32, 18, 8, 2} |  | Actinium | {2, 8, 18, 32, 18, 9, 2} |  | Thorium | {2, 8, 18, 32, 18, 10, 2} |  | Protactinium | {2, 8, 18, 32, 20, 9, 2} |  | Uranium | {2, 8, 18, 32, 21, 9, 2} |  | Neptunium | {2, 8, 18, 32, 22, 9, 2} |  | Plutonium | {2, 8, 18, 32, 24, 8, 2} |  | Americium | {2, 8, 18, 32, 25, 8, 2} |  | Curium | {2, 8, 18, 32, 25, 9, 2} |  | Berkelium | {2, 8, 18, 32, 27, 8, 2} |  | Californium | {2, 8, 18, 32, 28, 8, 2} |  | Einsteinium | {2, 8, 18, 32, 29, 8, 2} |  | Fermium | {2, 8, 18, 32, 30, 8, 2} |  | Mendelevium | {2, 8, 18, 32, 31, 8, 2} |  | Nobelium | {2, 8, 18, 32, 32, 8, 2} |  | Lawrencium | {2, 8, 18, 32, 32, 8, 3} |  | Rutherfordium | {2, 8, 18, 32, 32, 10, 2} |  | Dubnium | {2, 8, 18, 32, 32, 11, 2}[note] |  | Seaborgium | {2, 8, 18, 32, 32, 12, 2}[note] |  | Bohrium | {2, 8, 18, 32, 32, 13, 2}[note] |  | Hassium | {2, 8, 18, 32, 32, 14, 2}[note] |  | Meitnerium | {2, 8, 18, 32, 32, 15, 2}[note] |  | Darmstadtium | {2, 8, 18, 32, 32, 17, 1}[note] |  | Roentgenium | {2, 8, 18, 32, 32, 18, 1}[note] |  | Ununbium | {2, 8, 18, 32, 32, 18, 2}[note] |  | Ununtrium | {2, 8, 18, 32, 32, 18, 3}[note] |  | Ununquadium | {2, 8, 18, 32, 32, 18, 4}[note] |  | Ununpentium | {2, 8, 18, 32, 32, 18, 5}[note] |  | Ununhexium | {2, 8, 18, 32, 32, 18, 6}[note] |  | Ununseptium | {2, 8, 18, 32, 32, 18, 7}[note] |  | Ununoctium | {2, 8, 18, 32, 32, 18, 8}[note] | 
 |