Merits & demerits of doberneiers classification
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Demerits of dobereiner’s triads system:
- This system fails because it does not hold good for all the elements discovered till date time. It is limited to only few elements.
- It does not completely explain the complete properties of elements like valency, oxidation state of elements which have variable oxidation state like phosphorus showing trivalent and pentavalent nature.
- It does not fit to transition elements.
The only advantage of Dobereiner’s research was that it made chemists look at elements in terms of groups of elements with similar chemical and physical properties. This eventually led to rigorous classification of elements and the modern periodic table of elements, as we now know it, was discovered.
Hope it helps you.
Demerits of dobereiner’s triads system:
- This system fails because it does not hold good for all the elements discovered till date time. It is limited to only few elements.
- It does not completely explain the complete properties of elements like valency, oxidation state of elements which have variable oxidation state like phosphorus showing trivalent and pentavalent nature.
- It does not fit to transition elements.
The only advantage of Dobereiner’s research was that it made chemists look at elements in terms of groups of elements with similar chemical and physical properties. This eventually led to rigorous classification of elements and the modern periodic table of elements, as we now know it, was discovered.
Hope it helps you.
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