Inspirational Oxygen Periodic Table
- The periodic table of elements is usually a table which shows the arrangement of chemical elements ordered by atomic numbers in columns and rows. That it was invented by Russian chemist Dmitri Mendeleev in 1869 to determine the periodic trends around the properties of elements.
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The next thunderstorm are listed in accordance with their increasing atomic numbers. Rows are arranged such that elements sticking with the same properties belong to the equivalent 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. Don't just are the groups during the periodic table, several other groupings of elements often named as well. These are lanthanoids and actinoids.
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In 2006, the periodic table contained 117 periodic elements. Out of these, 92 are only naturally on the globe, and the others are artificial elements.