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วันอาทิตย์ที่ 4 ตุลาคม พ.ศ. 2552

Facts About the Periodic Table by kayla

Throughout the history of mankind, we have tried to use science to understand the world around us. Science requires systems and clear definitions and methodology, and expression of ideas and concepts. Therefore, whenever a new understanding of science or injured, new ideas and systems must be designed and implemented. There is no better example of the use of the periodic table. Here are some facts about the periodic table of elements.
Long ago, in the 19th century, scientists discovered that different chemicals, materials and objects that have different characteristics and structures of matter that can be easily found or does not appear to be. Thanks to technologies like the microscope, scientists understand the first time, begin to see how different chemicals have. A like through an understanding of the various chemical elements as they were called, began to classify the different tables to build the team and defining the various components. This was the forerunner of the periodic table of elements today, which was designed by a Russian chemist named Dimitri Mendeleev in 1869.
The periodic table of elements developed over 200 chemicals, most of which occur naturally, but more and are only in the composition of the high-tech laboratories, institutes and schools worldwide.
Knowledge of the periodic table requires only a short time, the simplicity of the table is very effective. The data listed in order of atomic weights and are grouped under similar chemical properties. This allowed researchers to understand and assumptions about how elements react with one another simply by looking at the periodic table.
Knowledge of the periodic table of elements necessary for a variety of scientific fields. Clearly, knowledge of the periodic table of vital importance to chemists and chemical engineers. The periodic table is used in other disciplines such as biology and physics. Teach the periodic table of elements is a standard in the curriculum and the highest it should be understood by students of science in all schools. Knowledge of the periodic table at this level is more important than the understanding of scientific concepts and systems, and not the actual information of chemical components. Teachers promote the use of a framework for recording and understanding of the various components, as an example of how scientific thought. Knowledge of the periodic table of elements is less than factors such as standardization of scientific thought and procedure.

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