According to Newlands\’ law of octaves when the elements are arranged in order of increasing atomic weights then every eight element has properties similar to that of the first element.\tElementLiBeBCNOFAtomic Weight791112141619ElementNaMgAlSiPSClAtomic Weight23242728313235.5ElementKCa\xa0\xa0\xa0\xa0\xa0Atomic Weight3940\xa0\xa0\xa0\xa0\xa0\tIn Newlands\’ table of elements lithium, sodium and potassium occupied places near each other. Other similar elements like fluorine and chlorine or oxygen and sulphur were placed near each other. This classification worked well with the elements with small atomic weights but failed in the case of elements with large atomic weights.