Question

Give an example of dobereiner's traid.

Answer 1

Answer:

Example: In the triad of lithium, sodium and potassium. The atomic mass of lithium is 7 and the atomic mass of potassium is 39.

Answer 2

Answer:

In this , elements r arranged in increasing order of atomis masses. Triad is group of 3 elements having same chemical properties.

Eg. Lithium , sodium , potassium ( Li , Na ,K )