newlands law of octaves

johan newlands was a British chemist.newlands (1865) found that when elements were arranged in the ascending order of their atomic weights they appeared to fall into seven groups . each group contained elements with similar chemical properties .based on these observations, newlands proposed the law of octaves.
The law of octaves states that when elements are arranged in the ascending order of their atomic weights they fall into a pattern in which their properties repeat at regular intervals.every eighth element starting from a given element resembles in it's properties are to be present along a horizontal row.
New lands was the first to assign atomic numbers to the elements . unfortunately his work was neither accepted by his seniors nor by the journal of the chemical society, which rejected it's publication .
In Newlands table of elements ,if we start with hydrogen and move down and then start at the top the eighth element is fluorine and next eighth element is chlorine and so on.the properties hydrogen, fluorine and chlorine are similar.
Similarly,if you start at lithium,then eighth element is sodium and next coming eighth is potassium and so on.these elements show similar physical and chemical properties.

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