Question

Which is not a dobereiner triad​

Answer 1

Answer:

Which of the following is not a Dobereiner triad -a)Li, Na, Kb)Mg, Ca, Src)Cl, Br, Id)S, Se, TeCorrect answer is option 'B'.

Explanation:

if there are any of the two elements in the group that has a very low and very high atomic mass number, then these elements do not exhibit Doberiner traits. Li (7) , Na (23) , K (39) = Li + K = 7 + 39 = 46 / 2 = 23 = Na (middle element) so this is a Dobereiner traits..

hopefully it will helps you..