Question

what was the basis of 'triads' formed by Dobereiner? give an example

Answer 1

Dobereiner traid made group of three element each having similar chemical properties and called them triads.He arrange three element in a triad in an increasind order of atomic masses and showed that atomic masses of the middle element was approximately equal to mean atomic masses of the other two element

Example: lithium, sodium and potassium

Answer 2

Answer: Dobereiner traid made group of three element each having similar chemical properties and called them triads.He arrange three element in a triad in an increasind order of atomic masses and showed that atomic masses of the middle element was approximately equal to mean atomic masses of the other two element

Example: lithium, sodium and potassium