Question

elements X, Y and Z are found to have having atomic mass 14, 74,31,respectively. will they constitute dobereiner 's triad ​

Answer 1

Answer:

This is an example of Dobereiner's triads which is a group of three elements. In Dobereiner's triads the atomic masses of elements are arranged in such a way that the atomic mass of middle element is almost the mean of atomic masses of first and third elements.

For example; Ca, Sr and Ba is one of the Dobereiner's triads. Here, atomic masses of Ca, Sr and Ba are 40, 88 and 137 respectively. Atomic mass of Sr that is 88 is almost the mean of atomic masses of Ca and Ba.

Answer 2

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Question

Elements X, Y and Z are found to have having atomic mass 14, 74,31,respectively. Will they constitute dobereiner 's triad ?

Answer

Yes they will constitute a dobereiner' s traid.

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