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Dobernier's Triads

A, B, C are t...

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A, B, C are three elements forming Dobereiner's triad. If the atomic mass of A and C are in the ratio 3:4 and sum of their atomic masses is 27 then find the atomic mass of B.

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Q. Given below are the elements with their atomic masses. Identify a set of elements which is not a Dobereiner triad.

Q. Given below are the elements with their atomic masses. Identify a set of elements which is not a Dobereiner Triad?

(a) A, B and C are the elements of Dobereiner's triad. If the atomic mass of A is 7 and that of C is 39, what should be the atomic mass of B?

(b) Why was the Dobereiner triad discarded?

Q. Three elemts X,Yand Z form a Dobereiner triad. Their atomic weight of X,Y,Z are in the ratio
5:11:7. If the sum of teh atomic weight of extreme elements is 176 find the atomic weights of X,Y and Z.

Elements A,B,C forms Dobereiner's triads. If atomic mass of element A is 7 and the atomic mass of element C is 39. Then atomic mass of element B is

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