Which of the following given is the correct increasing order of the atomic radii of O, F and N.O, F, NN, F, OO, N, FF, O, N

The correct increasing order of the atomic radii of O, F, and N is F, O, N.

Here's why:

1. Atomic radius generally decreases as you move from left to right across a period in the periodic table. This is because as you move across a period, each atom has more protons in its nucleus, pulling the electron cloud closer to the nucleus and decreasing the atomic radius.

2. Nitrogen (N), Oxygen (O), and Fluorine (F) are all in the same period (Period 2) of the periodic table. Nitrogen is on the left, followed by Oxygen, and then Fluorine on the right.

3. Therefore, following the trend, Fluorine should have the smallest atomic radius, followed by Oxygen, and then Nitrogen with the largest atomic radius.

So, the correct increasing order of atomic radii for these elements is F, O, N.