Question

see the elements and their atomic masses (given in brackets). classify them as dobereiner's triads. ba(137.3), br(79.9), ca(40.1), cl(35.5), i(126.9), sr(87.6) ​

Answer 1

Answer:

From the following given:-

First triad: Ca(40.1), Sr(87.6), Ba(137.3)

Second triad: Cl(35.5), Br(79.9), I(126.9)

Explanation:

Dobereiner stated in his law of triads that the arithmetic mean of the atomic masses of the first and third element in a triad would be approximately equal to the atomic mass of the second element in that triad.

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