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- The periodic table of elements is definitely a table which shows the arrangement of chemical elements ordered by atomic numbers in columns and rows. Rrt had been invented by Russian chemist Dmitri Mendeleev in 1869 to discover the periodic trends around the properties of elements.
Aluminum s location on the periodic table of the elements
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The sun and rain are listed depending on their increasing atomic numbers. Rows are arranged in this manner that elements sticking with the same properties fall under the exact same vertical columns. The groups or columns are numbered 1-18. The arrangement is Group 1(alkali metals), Group 2(alkaline earth metals), Group 15 (pnicogens), Group 16(chalcogens), Group 17(halogens) and Group 18(noble gases). Often times there are groups that enjoy non-systematic names as well. But not only could be the groups on the periodic table, other groupings of elements often named as well. There're lanthanoids and actinoids.
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In 2006, the periodic table contained 117 periodic elements. Out of them, 92 are normally found naturally remaining, and the remaining are artificial elements.