Question

Among O, C, F, Cl, Br the correct order of increasing atomic radii is

Answer 1

The correct order would be :

F , O , C ,  Cl , Br

Note the following :

⇒ The atomic radii increases down a group .

⇒ The radii increases left across the period .

Hence F < O < C < Cl < Br

This is for the reasons stated above.

Answer 2

THE ANSWER WILL BE :

F,O,C,CL,BR