Question

Define atomic size how does it very along and group and along period

Answer 1

Atomic size decreases across a Period from left to right as we face the Table, but INCREASES down a Group, a column of the Periodic Table. ... And thus across the Period nucular charge predominates, and draws the valence electrons towards the nuclear core, with the result of a marked decrease in atomic radius.

Answer 2

Explanation:

Explanation: Atomic size decreases across a Period from left to right as we face the Table, but INCREASES down a Group, a column of the Periodic Table. ... And thus across the Period nucular charge predominates, and draws the valence electrons towards the nuclear core, with the result of a marked decrease in atomic radius.