Define law of octaves

1.	Define law of octaves
Answer» \tIn 1864, Newlands arranged the known 56 elements in the order of increasing atomic masses.\tHe observed that the properties of every eighth element are similar to the properties of the first element.\tBased on this observation, he proposed the Law of Octaves for the classification of elements.Law of Octaves: When the elements are arranged in the increasing order of their atomic masses, the properties of every eighth element are similar to the first.

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