Question

Which of the sets of elements follows Newland’s octave rule:-

A)Be,Mg,Ca

B)Na,K,Rb

C)F,Cl,Br

D)B,Al,Ga

and how?

Answer 1

The correct answer is option (A) Be, Mg, Ca
According to Newland's Law of Octaves elements when arranged in increasing order every eighth element is similar in properties to the preeceding eighth element. That means the first and eighth element are same as first.

1, 2, , 3, 4 . 5 6 7 8(1) 2 3 4 5 6 7 8
Be , B, C, N ,O ,F, Na, Mg ,Al ,Si, P , S, Cl , K, Ca.