Question

)An elements A,B and C forms Dobereiners triad. If atomic mass of B=20 and

C=30 then what will be atomic mass of A​

Answer 1

Answer:

If A, B and C are the elements of dobereiners triad, then

Atomic mass of B = Atomic mass of A + Atomic mass of C /2

20 = A + C / 2

A + 30 = 40 Therefore, Atomic mass of A is the 10

Explanation:

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