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प्रश्न
What were the limitations of Dobereiner's classification of elements?
उत्तर
Limitations of Dobereiner's classification of elements:
It could identify only three triads from the elements which were known at that time. It failed to arrange all the elements which were known then in the form of triads of elements with the same chemical properties.
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संबंधित प्रश्न
Name the scientist who gave Law of triads in the early classification of elements.
A, B and C are the elements of a Dobereiner's triad. If the atomic mass of A is 7 and the of C is 39, what should be the atomic mass of B?
In Dobereiner’s triad containing Li, Na, K, if atomic masses of Lithium & Potassium are 6.9 and 39.1, then what will be the atomic mass of Sodium?
Why was Dobereiner's triad discarded?
With an example, explain Dobereiner's Triads.
Can the following groups of elements be classified as Dobereiner's triad:
Na, Si, Cl
Atomic mass of Na - 23, Si - 28, Cl - 35.
Justify your answer.
Explain why Dobereiner’s method of classification of elements did not hold much weightage for future classification.
Write the name.
The atom having the biggest atomic size from period 2.
In Dobreiner's triads, three elements appear to be arranged in ascending order of their atomic number.
If Dobereiner is related with ‘law of triads’, then Newlands is related with ______.
