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Explain Newlands law of octaves |
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Answer» Newlands arrange the 56 element .According to their increasing atomic masses he explained that the property of 1st element will resumble with 8th element. Newland’s law of octaves: John Newlands arranged the elements in the order of increasing atomic masses. Till then only 56 elements were known to us. He started with hydrogen which has the lowest atomic mass and finally ended at thorium which was the element known to have highest atomic mass at that time. He noticed that every eighth element exhibits similar properties as compared to the first element. He called this law as ‘Newland’s Law of Octaves’.According to Newland’s Law of Octaves, as the observed properties of lithium and sodium are same, sodium is placed at the eighth position with respect to lithium. When element is arranged in the order of increasing atomic masses, groups of eight element (starting from a given element) are a repetition of the properties of the first element According to Newlands law of octaves when we arrange the elements by their increasing atomic masses the chemical properties of every eighth element is similar to that of first element |
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