General

Periodic table of elements


All 118 elements

From actinium to zirconium ...

HHe
LiBeBCNOFne
N / AmgalSiPSClAr
KCascTiVCrMnFeCoNiCuZngaGeacesebrKr
RbSrYZrNbMotcRurhPdAgCDInsnsbTeIXe
CsBa*HfTaWreosIrPtAuhgtlpbBipoAtrn
Fri.Ra**RfdbsgBrahsMtdsrgcnUutFlUuplvUusUuo
LaCeprNdpmsmeuGdTbDyHoHetmYbLu
ActhPaUnpPuAt theCmBkCfItfmMdNoLr

--- non-metals --- carbon phosphorus oxygen sulfur nitrogen hydrogen
--- alkali metals --- cesium francium potassium lithium sodium rubidium
--- Alkaline earth metals --- Barium Beryllium Calcium Magnesium Radium Strontium
--- semi-metals --- antimony arsenic boron germanium selenium silicon tellurium
--- Halogens --- Astatine Bromine Chlorine Fluorine Iodine
--- noble gases --- argon helium krypton neon radon xenon
--- Metals --- Aluminum Lead Bismuth Gallium Indium Polonium Thallium Tin
--- Transition metals --- Drill Cadmium Chromium Cobalt Copernicium Dubnium Iron Gold Hafnium Hassium Iridium Copper Manganese Molybdenum Nickel Niobium Osmium Palladium Platinum Mercury Rhenium Rhodium Rutherfordium Ruthenium Seaborgium Scandium Silver Tantalum Technetium Titanium Vanadium Tungsten Yttrium Zinc Zirconium
--- Lanthanoids --- Cerium Dysprosium Erbium Europium Gadolinium Holmium Lanthanum Lutetium Neodymium Praseodymium Promethium Samarium Terbium Thulium Ytterbium
--- Actinoide --- Actinium Americium Berkelium Californium Curium Fermium Einsteinium Lawrencium Mendelevium Neptunium Nobelium Thorium Plutonium Protactinium Uranium
--- Unknown --- Darmstadtium Flerovium Livermorium Meitnerium Roentgenium Ununtrium Ununoctium Ununpentium Ununseptium

Periodic table

History, number of elements and grouping ...

The Periodic table of elements in its current still existing arrangement, was first published by the Russian chemist Dmitry Mendeleyev in 1869. Although only about 60 elements were known in the mid-19th century, Mendeleev arranged the elements according to their atomic mass and could therefore predict the discovery of other chemical elements.
Currently there are 118 elements in the periodic table. However, further discoveries of heavy elements in the coming years are relatively safe. The generation of these mostly very short-lived elements is made possible by nuclear fusion.
The periodic table of the elements can be divided into periods, main groups and subgroups. Both periods These are the total of seven horizontal lines. The main groups include eight (alkali metals, alkaline earth metals, boron group, carbon-silicon group, nitrogen-phosphorus group, chalcogens, halogens, noble gases) and the subgroups ten units (scandium group, titanium group, vanadium group, chromium group, manganese group, iron group, cobalt group, nickel group, copper group, zinc group).
In addition, there are still the groups of lanthanides and actinoids, which are classified for clarity in almost all performances under the periodic table.