Question

what is the law of Dobereiner's Triads.​

Answer 1

Law of Dobereiner's Triads explains the position of elements.

• According to Dobereiner, when elements are arranged in increasing order of their atomic masses, the arithmetic mean of the atomic masses of the first and third element in a triad is approximately equal to the atomic mass of the second element in that triad.
• Dobereiner's Triads are groups of three elements arranged in such a way that the atomic weight of the middle element is almost the average of the other two.
• The elements of the triad have almost similar properties.