Which of the following sets of three elements (triads) follow D`ddot(o)
Channel: Doubtnut
Date: 2020-08-30

Which of the following sets of three elements (triads) follow D`ddot(o)`bereiner's relatiship referred to as the law of triads? `(i) Ca,Sr, Br` (ii) `Li, Na, K`  (iii) `S, Se, Te` (iv) `C1, Br, I`