Awesome Science Periodic Table
- The periodic table of elements is really a table which shows the arrangement of chemical elements ordered by atomic numbers in columns and rows. That it was created by Russian chemist Dmitri Mendeleev in 1869 to determine the periodic trends inside properties of elements.
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The next thunderstorm are listed depending on their increasing atomic numbers. Rows are arranged in a manner that elements concentrating on the same properties number the exact 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). There are some groups that enjoy non-systematic names as well. Not only are the groups during the periodic table, a few other groupings of elements often named as well. They are simply lanthanoids and actinoids.
This able periodic table shows the relative density of each element by the width of the colored bar
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In 2006, the periodic table contained 117 periodic elements. Out of which, 92 can be found naturally on earth, and all others are artificial elements.