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List of chemical elements - Wikipedia List of chemical elements 118 chemical elements have been identified and named officially by IUPAC A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i e , a specific atomic number, or Z) [1]
Periodic Table - Ptable Interactive periodic table showing names, electrons, and oxidation states Visualize trends, 3D orbitals, isotopes, and mix compounds Fully descriptive writeups
Periodic Table of Elements - PubChem Interactive periodic table with up-to-date element property data collected from authoritative sources Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!
Periodic table - Wikipedia Periodic table of the chemical elements showing the most or more commonly named sets of elements (in periodic tables), and a traditional dividing line between metals and nonmetals The f-block actually fits between groups 2 and 3; it is usually shown at the foot of the table to save horizontal space
Periodic Table Of The Elements - ChemicalAid The periodic table provides an extremely useful framework to classify, systematize and compare all the many different forms of chemical behavior The table has also found wide application in physics, biology, engineering, and industry It currently contains 118 elements
Periodic table | Definition, Elements, Groups, Charges, Trends, Facts Periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number When the elements are thus arranged, there is a recurring pattern called the ‘periodic law’ in their properties, in which elements in the same column (group) have similar properties
The periodic table of the elements by WebElements Explore the chemical elements through this periodic table The standard form of the periodic table shown here includes periods (shown horizontally) and groups (shown vertically) The properties of elements in groups are similar in some respects to each other
Periodic table - Elements, Groups, Blocks | Britannica The periodic table of the elements contains all of the chemical elements that have been discovered or made; they are arranged, in the order of their atomic numbers, in seven horizontal periods, with the lanthanoids (lanthanum, 57, to lutetium, 71) and the actinoids (actinium, 89, to lawrencium, 103) indicated separately below