Question

Define Dobereiner's triad with example.​

Answer 1

Explanation:

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 triad have almost similar properties.

For example, consider Li,Na and K with atomic weights 7,23 and 39 g/mol respectively.

7+39/2 =23

The atomic weight of Na is almost the average of the atomic weights of Li and K. Other examples include

(i) Ca(40),Sr(88) and Ba(137)

(ii) Cl(35.5),Br(80) and I(127).

Answer 2

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 triad have almost similar properties. For example, consider Li,Na and K with atomic weights 7,23 and 39 g/mol respectively. 27+39=23.

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST ☺️