Your answer sir

Limitations of Newland's Law of Octaves: Newland could arrange elements only up to calcium, out of the total 56 elements were known. 

2) He says that only 56 element will be there and no other element will be discover in future. 

3) His arrangements was only applicable upto calcium. 

4) His law was working for only lighter element. 

5) He placed nikel first and then cobalt but nikel have less atomic mass then cobalt. 

6) There was no fixed position for hydrogen. 

7) He also placed element having different physical and chemical property in same group. 

8) there was no position of nobel gases. 

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