what is the basic theme of organisation in the periodic table ?
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The physical and chemical properties of the elements are periodic functions of their atomic numbers. Elements having similar outer electronic configuration in their atoms are arranged in the same group. Thus, the basic theme of organisation of elements in the periodic table is to classify them into groups and periods.
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The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom of that element.
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