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New the Elements

New the Elements
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The periodic table of elements is a table which shows the arrangement of chemical elements ordered by atomic numbers in columns and rows. It has been invented by Russian chemist Dmitri Mendeleev in 1869 to discover the periodic trends inside the properties of elements.


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Best the elements
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The weather are listed based on their increasing atomic numbers. Rows are arranged in a manner that elements sticking with the same properties number the identical 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). You can find groups that enjoy non-systematic names as well. Not simply is the groups with the periodic table, another sort of groupings of elements often named as well. They are simply lanthanoids and actinoids.


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Finest the elements
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In 2006, the periodic table contained 117 periodic elements. Out of the, 92 are merely naturally alive, and others are artificial elements.