What were the limitation of newland' law of octaves?
Answers
Answer:
Newlands' law of octaves for the classification of elements had the following limitations :
(i) This law was applicable to the classification of elements up to calcium only. After calcium, every eighth element did not possess the properties similar to that of the first element.
(ii) Newlands assumed that only 56 elements existed in nature and no more elements would be discovered in the future.
(iii) In order to fit elements into his table, Newlands put even two elements together in one slot and that too in the column of unlike elements having very different properties. For example, the two elements cobalt (Co) and nickel (Ni) were put together in just one slot, and that too in the column of elements like fluorine, chlorine and bromine which have very different properties from these elements.
Answer: Newland arranged many of the known elements in the increasing order of their atomic masses. But after sometime his law was failed due to following reasons.these are:-
Explanation:
1...This law could be best applied ,only up to the element calcium.
2...Newly discovered elements could not fit into the octave structure.
3...The feature of resemblance of the 8th element when arranged in increasing order of thier atomic masses was not successful with heavier elements.