Question

Which of the following gives the correct increasing order of the atomic radii of O, F and N?

• A. O, F, N
• B. N, O, F
• C. O, N, F
• D. F, O, N

Answer 1

The correct option is D F, O, N

As we move along a period from left to right, number of protons increases and valence shell remains same so radius of atom decreases.
So, increasing order of radii is F, O, N.