Multiple choice

Which of the following is the correct order of arrangement of decreasing atomic radii of F, F, O and O2–?

  1. O2– > O > F > F

  2. F > O2– > F > O

  3. O2– > F > F > O

  4. O2– > F > O > F

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The correct decreasing order of arrangement of atomic radii of F, F, O and O2– is O2– > F > O > F because size of the anions is greater than the corresponding atoms and also across a period, the size of atom decreases.