Question

State and explain Dobereiner Rule of triad AKA Dobereiner's Law ?

Answer 1

Answer:

Dobereiner's law of triads states that, the atomic mass of the middle element of a triad is the arithmetic mean of the atomic masses of the other two elements. Example:In the triad of lithium, sodium and potassium. ... Drawbacks: All the known elements could not be arranged in the form of triads

Explanation:

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Answer 2

Answer:

Dobereiner arranged elements in a group of three called triads. Dobereiner's law of triads states that the atomic mass of middle term is the average of atomic masses of other two elements