Atomic radius is expressed in the unit ______.

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KollegeApply · Accepted Answer

Atomic radius is expressed in the unit picometer. Explanation: Because atoms are extremely small, their atomic radii are measured using very small units of length. While nanometres (1 nm = 10−9m) are sometimes used, the picometre (1 pm = 10−12m) is the most standard and precise unit for expressing atomic size in chemistry.

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