The three elements A, B and C with similar properties have atomic masses X, Y and Z respectively.
The three elements A, B and C with similar properties have atomic masses X, Y and Z respectively. The mass of y is approximately equal to the average mass of X and Z.What is such an arrangement of elements called as? Give one example of such a set of elements.
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The arrangement of these elements is known as Dobereiner triad. Example: lithium, sodium and potassium.
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