Question

what is the unit of radius of an atom ???​

Answer 1

HERE IS YOUR ANSWER -

The atomic radius (r) of an atom can be defined as one half the distance (d) between two nuclei in a diatomic molecule. Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10−12 meter

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Answer 2

Hey mate, here is your answer :-

The unit of radius of an atom (i.e. Atomic Radius) is Picometer. (pm).

Explanation:

The atomic radius is measured in Picometer.

Conversion of Picometer to Metre:

• $1pm = {10}^{-12} m$

Hope it helps.

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