What Were the Limitations of Newlands’ Law of Octaves? - Science


What were the limitations of Newlands’ Law of Octaves?



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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Chapter 5: Periodic Classification Of Elements - Exercise 1 [Page 283]


Lakhmir Singh Class 10 Chemistry (Science)
Chapter 5 Periodic Classification Of Elements
Exercise 1 | Q 23.3 | Page 283
NCERT Science Class 10
Chapter 5 Periodic Classification of Elements
Intext Questions | Q 3 | Page 81

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State Newlands‘ Law of Octaves.

The law used by Newlands to arrange elements is known as........... .

Name the scientist who gave the Law of octaves in the early classification of elements.

Fill in the following blank with suitable word:

According to Newland's classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the ............... element starting from oxygen.

What is Newlands' law of octaves? Explain with an example.

Did Dobereiner's triads also exist in the columns of Newlands' law of octaves? Explain your answer.

The Newland's law of octaves for the classification of elements was not found to be applicable only up to the element:

(a) potassium
(b) calcium
(c) cobalt
(d) phosphorus

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.

Explain 'Newland's Law of Octaves.' Why was the law discarded?

List two limitations of Newlands' Law of Octaves.

What was the basis of the classification proposed by Newland?

State Newland’s Law of Octaves with a suitable example.

In which way was Newland’s Law of Octaves comparable to a musical note.

Select the correct answer from the options given below.

He arranged elements in increasing order of atomic numbers.

Newlands’ Law of Octaves is applicable upto _______.

X and Y are two elements having similar properties which obey Newlands’s Law of Octaves. The minimum and maximum number of elements in between X and Y respectively are _______.

Find the odd one out and give its explanation.

Find the odd one out and give its explanation.

Element A and B follows Newland’s octaves rule. How many elements are there in between A and B?

To which element does Newland’s octave rule apply?

The elements beryllium, magnesium and calcium are in group 2. What will be their valency?

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.

Newlands relation is called ______ 

Up to which element, the Law of Octaves was found applicable?


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