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Question
If Dobereiner is related with ‘law of triads’, then Newlands is related with ______.
Options
Modern periodic law
Hund’s rule
Law of octaves
Pauli’s Exclusion principle
Solution
If Dobereiner is related with ‘law of triads’, then Newlands is related with Law of octaves.
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RELATED QUESTIONS
Name the scientist who gave Law of triads in the early classification of elements.
Can the following groups of elements be classified as Dobereiner's triads?
(a) Na, Si, Cl
(b) Be, Mg, Ca
Give reason for your answer.
(Atomic masses : Be 9 ; Na 23 ; Mg 24 ; Si 28 ; Cl 35.5 ; Ca 40)
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Did Dobereiners triads also exist in the columns of Newland's Octaves? Compare and find out.
With an example, explain Dobereiner's Triads.
Find the odd one out and give its explanation.
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In Dobereiner’s triads, the atomic weight of the middle element is ______ the of the atomic masses of 1st and 3rd elements.
