Which is the correct statement about the Newlands law of octaves?

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This theory explains all elements

None of the above

The property of every eighth element is similar to the first element

Both 1 and 2

answer is A.

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Detailed Solution

As per the Newlands law of octaves, the property of every eighth element is similar to the first element.
The Law of octaves states “if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements”. The theory explains only up to calcium after that it fails to explain other elements. This led to the discovery of Mendeleev’s Periodic Law.

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