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प्रश्न
What were the limitations of Newlands’ Law of Octaves?
उत्तर
Limitations of Newlands’ law of octaves:
a) It was not applicable throughout the arrangements. It was applicable up to calcium only. The properties of the elements listed after calcium showed no resemblance to the properties of the elements above them.
b) Those elements that were discovered after Newlands’ octaves did not follow the law of octaves.
c) The position of cobalt and nickel in the group of the elements (F, Cl) of different properties could not be explained.
d) Placing of iron far away from cobalt and nickel, which have similar properties as iron, could also not be explained.
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संबंधित प्रश्न
State Newlands‘ Law of Octaves.
State whether the following statement is true of false:
Newlands divided the elements into horizontal rows of eight elements each.
Name the scientist who gave the Law of octaves in the early classification of elements.
A part of the early classification of elements has been given below:
| H | Li | Be | B | C | N | O |
| F | Na | Mg | Al | Si | P | S |
(a) Which law of classification of element is illustrated by the above arrangement of elements?
(b) Name the scientist who proposed such a classification of elements.
(c) Why is such a classification of elements compared with a characteristics of musical scale?
(d) State one limitation of this classification of elements.
What was the basis of the classification proposed by Newland?
Select the correct answer from the options given below.
He arranged elements in increasing order of atomic numbers.
According to Newland’s octave rule, chlorine shows similarity with fluorine. Because chlorine is _______.
The similarity between the properties of the first and eighth elements is called the octave rule.
State Newland’s Law of Octaves.
Up to which element, the Law of Octaves was found applicable?
