Question

IU
The three elements A.B and C with similar properties have atomic mass X, Y and Z
respectively. The mass of 'Y' is approx. equal to the average mass of X and Y'. Which
law does it follow? Write one example of this triad.
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Answer 1

Answer:

Explanation:

these elements follow Dobereiner Law of triads

eg: Lithium, sodium and potassium

Answer 2

Answer:The arrangement of these elements is known as Dobereiner triad.

Explanation:

Example, Lithium, sodium and potassium.