Modern periodic table
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The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. In the modern periodic table, each element is represented by its chemical symbol. ... Rows of the periodic table are called periods.
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The modern periodic table is composed by Henry Moseley. He said that the properties of elements are the periodic function of their atomic number. zhe arranged the elements in 4 block. Metals and non metals are seperated by a zigzag line in which metalloids are placed.
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