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what are the limitations of newland\'s????? |
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Answer» thanks you both for answer me Newlands assumed that only 56 elements existed in nature and no more elements would be further discovered in the nearer future. But later on several new elements were discovered, whose properties couldn’t be defined as per the Law of Octaves.In order to fit elements into law of octaves Newlands not only adjusted two elementsin the same slot but also adjusted some unlike elements under the same note.Cobalt and nickel are in the same slot and are positioned in the same column with fluorine, chlorine and bromine possessing different properties than these elements.Iron possessing similar properties as cobalt and nickel, is placed far away from these elementsThus, Newlands’ Law of Octaves can be obeyed well by the lighter elements only. Abe ye koin sa answer hai Limitations of law of octaves: The law of octaves has the following limitations ; (A) The law of octaves was found to be applicable only upto calcium. It was not applicable to elements of higher atomic masses. ... (C) Newlands placed two elements in the same slot to fit elements in the table. |
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