Question

State law of triads and octaves

Answer 1

Answer:

Dobereiner's law of states that, the atomic mass of the middle element of a triad is the arithmetic mean of the triads atomic masses of the other two elements. Example:In the triad of lithium, sodium and potassium.

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Law of octaves states that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements.

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Answer 2

Answer:Dobereiner's law of triads state that the atomic mass of the middle elements of triad is almost the arithmetic mean of the other two elements.

Law of octaves :when the elements are arranged in the order of increasing atomic masses, the properties of eight elements (starting from a given element) are the repetition of the properties of the first element .

Explanation: