Question

Write down the two drawbacks of Newland's Law of Octaves.​

Answer 1

Answer:

(i) The Law was applicable to elements up to Calcium (Ca) only. (ii) Properties of new discovered elements did not fit into the law of octave

Answer 2

Hey mate

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≥ Newlands' law of Octaves :-

⇒Newland found that every eighth element had properties similar to that of the first. He compared these to the octaves found in music. Therefore, he called it is the ‘ Law of Octaves’. It is known as ‘ Newlands'law of octaves ’.

some drawbacks are given below ↓↓

→ Law of Octaves only applicable upto calcium and after calcium every 8th did not possess properties similar to that of the first.

→ At the time of Newlands' only 56 elements were existed in nature and Newlands' assume that no more elements will be discovered the future.  

→ But, later on , several new elements were discovered, whose properties did not fit into the law of octaves.

→ One important demerit of Newlands' law that he adjusted two elements in the same slot such as Cobalt and nickel [ Co and Ni ] .

→ With the discovery of noble gases the law of octaves become irrelevant.

→ Newlands'law of Octaves worked well with lighter elements only.

Hope it helps ✌✌