Chemistry
Give reason — Atomic radii is considered a periodic property, exhibiting periodicity.
Periodic Table
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Answer
When the elements are arranged in order of increasing atomic number, the atomic radius shows a regular, repeating pattern: it generally decreases from left to right across a period (because of increasing nuclear charge) and increases down a group (due to the addition of new electron shells). Because this variation repeats in each successive period, atomic radius is classified as a periodic property.
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