Question

exception in periodic trends such as atomic radii,ionisation , electronic configuration and electronegativity....

Answer 1

Héy MaTe#

So, Thé ÃnSwer is -- From top to bottom down a group,electronegativity decreases. This is because atomic number increases down a group, and thus there is an increased distance between the valence electrons and nucleus, or a greater atomic radius. Importantexceptions of the above rules include the noble gases, lanthanides, and actinides.

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