Question

The following group will form Dobereiner Triad or not. Guess the reason.
i) Na, Si, Cl (atomic weights of Na, Si, Cl are 23, 28, 35.5)
ü) S, Se, Te will form Dobereiner Triad then what is the atomic weight of Se (atomie
Te are 32, 128)
nt of Se (atomic weights of S,​

Answer 1

Answer:

Na,si,cl(atomic weight of Na, si,cl are 23 28 35.5