what is use of periodic table
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The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number,electron configuration, and recurring chemical properties, whose adopted structure shows periodic trends.
Before all the naturally-occurring elements were discovered, the periodic table was used to predict the chemical and physical properties of elements in the gaps on the table. ... The table is useful for modern students and scientists because it helps predict the types of chemical reactions that are likely for an element.
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The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number,electron configuration, and recurring chemical properties, whose adopted structure shows periodic trends.
Before all the naturally-occurring elements were discovered, the periodic table was used to predict the chemical and physical properties of elements in the gaps on the table. ... The table is useful for modern students and scientists because it helps predict the types of chemical reactions that are likely for an element.
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The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties, whose adopted structure shows periodic trends. Generally, within one row (period) the elements are metals on the left, and non-metals on the right, with the elements having similar chemical behaviours being placed in the same column. Table rows are commonly called periods and columns are called groups. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are halogens; and group 18 are noble gases. Also displayed are four simple rectangular areas or blocks associated with the filling of different atomic orbitals.
Importantly, the organization of the periodic table can be utilized to derive relationships between various element properties, but also predicted chemical properties and behaviours of undiscovered or newly synthesized elements. Russian chemist Dmitri Mendeleevwas first to publish a recognizable periodic table in 1869, developed mainly to illustrate periodic trends of the then-known elements. He also predicted some properties of unidentified elements that were expected to fill gaps within this table. Most of his forecasts proved to be correct. Mendeleev's idea has been slowly expanded and refined with the discovery or synthesis of further new elements and by developing new theoretical models to explain chemical behaviour. The modern periodic table now provides a useful framework for analyzing chemical reactions, and continues to be widely adopted in chemistry, nuclear physics and other sciences.
All elements ranging from atomic numbers 1 (hydrogen) to 118 (oganesson) have been either discovered or synthesized, completing the first seven rows of the periodic table.[1][2]The first 98 elements exist naturally, although some are found only in trace amounts and were synthesized in laboratories before being found in nature.[n 1] Atomic numbers for elements 99 to 118 have only been synthesized in laboratories or nuclear reactors.[3] The synthesis of elements having higher atomic numbers is currently being pursued: these elements would begin an eighth row, and theoretical work has been done to suggest possible appearances for this extension. Numerous synthetic radionuclides of naturally occurring elements have also been produced in laboratories.
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Importantly, the organization of the periodic table can be utilized to derive relationships between various element properties, but also predicted chemical properties and behaviours of undiscovered or newly synthesized elements. Russian chemist Dmitri Mendeleevwas first to publish a recognizable periodic table in 1869, developed mainly to illustrate periodic trends of the then-known elements. He also predicted some properties of unidentified elements that were expected to fill gaps within this table. Most of his forecasts proved to be correct. Mendeleev's idea has been slowly expanded and refined with the discovery or synthesis of further new elements and by developing new theoretical models to explain chemical behaviour. The modern periodic table now provides a useful framework for analyzing chemical reactions, and continues to be widely adopted in chemistry, nuclear physics and other sciences.
All elements ranging from atomic numbers 1 (hydrogen) to 118 (oganesson) have been either discovered or synthesized, completing the first seven rows of the periodic table.[1][2]The first 98 elements exist naturally, although some are found only in trace amounts and were synthesized in laboratories before being found in nature.[n 1] Atomic numbers for elements 99 to 118 have only been synthesized in laboratories or nuclear reactors.[3] The synthesis of elements having higher atomic numbers is currently being pursued: these elements would begin an eighth row, and theoretical work has been done to suggest possible appearances for this extension. Numerous synthetic radionuclides of naturally occurring elements have also been produced in laboratories.
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