REDuiS

[Virtual Presenter] Welcome everyone. Today, we will be taking a look at the atomic radius trend done by Rowaida Magdy 10A. She has studied how the atomic radius changes as we move throughout the Periodic Table and will be presenting her findings to us. Let's get started..

[Audio] The arrangement of the periodic table follows a pattern where the atomic radius of elements generally decreases from left to right across a period and increases as you move down a group. This is due to the fact that elements on the left side of the periodic table have higher nuclear charge which causes a greater attraction force and thus pulls the electron clouds closer together and reduces the atomic radius. On the other hand, elements on the bottom of a period possess a lower nuclear charge and therefore a weaker attraction force, resulting in a larger atomic radius. This trend is inversely proportional to the nuclear charge. Similarly, the atomic radius increases as you move down a group because these elements have higher energy levels, and consequently an increased atomic radius. This trend is directly proportional to the energy level..

THIS IS MY PROJECT ::.