Elements A, B and C constitute a Dobereiner’s triad. The atomic mass of A is20 and that of C is 40. Predict the atomic mass of B.
Elements A, B and C constitute a Dobereiner’s triad. The atomic mass of A is20 and that of C is 40. Predict the atomic mass of B.
Ans: – According to Doberniar trad formula the mass of the middle element will be average of the remaining two’s sum. So, the atomic mass of B will be (20 +40)/2 =30.
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