Question

.
Which of the following pair belongs to same group in long form of periodic
table ?
(A) N, P
(B) C, Si
(C) 0,S
(D) F, C1​

Answer 1

both lines have 2134 number group in long form of periodic

Answer 2

Answer:

All of the pairs of elements belong to the same group correspinding to their places in the periodic table (N,P)Nitrogen family.

(C,Si)Carbon family,(O,S)Oxygen family,(F,Cl)Halogen family.