define periodicity. explain the need of the classification of elements
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Repetition of properties after a certain interval is called periodicity of properties. If elements are arranged in increasing order of their atomic number in the periodic table, then elements repeat their properties after a definite interval.
The need of classification of elements is because so we can study then effectively, easily a and efficiently
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Repetition of properties after a certain interval is called periodicity of properties. If elements are arranged in increasing order of their atomic number in the periodic table, then elements repeat their properties after a definite interval.
The need of classification of elements is because so we can study then effectively, easily a and efficiently
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