Question

(A, B, C) is
Dobereiner's triad.
complete the following chart and
give reason for the answer.
B
C
Elements A
Atomic mass 6.9
23​

Answer 1

Answer:

please tell the right question I can't understand your question

Answer 2

Answer:

Dobereins triad :- when three elements in a triad were in order to increase their atomic masses , the atomic mass of middle element is roughly average of the atomic mass of the other two side ...

Explanation:

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