Question

explain the trend or variation in atomic radius​

Answer 1

Neutral atoms tend to increase in size down a group and decrease across a period. When a neutral atom gains or loses an electron, creating an anion or cation, the atom's radius increases or decreases, respectively. This module explains how this occurs and how this trend differs from that of atomic radii........

Answer 2

Explanation:

Atomic radius is the distance from the centre of the nucleus to the valence electron in an energy level. Atomic radius is expressed in angstrom units.

Trend in atomic radius: The atomic radius decreases across a period while moving from left to right in the periodic table due to increase in nuclear charge.

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