The periodic table of the chemical elements is a table that displays all known chemical elements in a systematic way. The elements in the periodic table are ordered by their atomic number (Z) and are arranged in periods (horizontal rows) and groups (vertical columns).
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The latest release of the Periodic Table (dated 1 Dec 2018) includes the most recent updates released in June 2018 by the IUPAC Commission on Isotopic Abundances and Atomic Weights () (see related News, released 5 June 2018), and specifically for argon, the assignment of an interval for the new standard atomic weight which reflects the common occurrence of variations in the atomic weights of
The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements.
Aluminium atoms have 13 electrons and the shell structure is 2.8.3. The ground state electronic configuration of neutral aluminium is [Ne].3s 2.3p 1 and the term symbol of aluminium is 2 P 1/2.. Aluminium: description Your user agent does not support the HTML5 Audio element.
The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends.