Question

Arrange the given elements in their increasing order of their atomic radii by giving
suitable explanation.
Oxygen, Nitrogen, Fluorine.​

Answer 1

Answer:

Fluorine < Oxygen < Nitrogen

If the number of electron increases then the nuclear force will increase , causing the atomic radius get reduced . Fluorine has 9 electrons , Oxygen 8 and Nitrogen 7 so Nitrogen has the biggest electron radius . ( Although there are exceptions for sub radius and stability , I have not studied those yet )

Answer 2

Explanation:

The increasing order of the atomic radii of oxygen, fluorine and nitrogen is fluorine, oxygen and nitrogen. This is because the atomic radius decreases from left to right in a period.