Which of the following is not Dobereiner triad?
A. Li, Na, and K
B. He, Na and Ar
C. Ca, Sr and Ba
D. CL, Br and I
Answer:B
Which of the following is not Dobereiner triad?
A. Li, Na, and K B. He, Na and Ar C. Ca, Sr and Ba D. CL, Br and I