* Atomic radius: This refers to the distance between the nucleus and the outermost electron shell. Oxygen's atomic radius is 48 pm (picometers).
* Covalent radius: This is half the distance between the nuclei of two bonded oxygen atoms. The covalent radius of oxygen is 48 pm.
* Van der Waals radius: This represents the radius of the space occupied by an oxygen atom in a crystal or molecule, including its electron cloud. The Van der Waals radius of oxygen is 152 pm.
Therefore, the atomic size of oxygen varies depending on the method used for measurement.
It's important to note that these are just approximate values, and the exact size can vary slightly depending on the specific molecule or crystal structure.
