Question

The following group of elements have similar chemical properties identify with reason whether it is a Dobereiner's triad N(14.00),P(30.9),As(74.9)

Answer 1

Answer:

Explanation:

It is not a Dobereiner's triad as in it the middle term is not an average of the other 2.

(14+74.9)/2 is not equal to 30.9...

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