IIT/JEE Chemistry Practice #15: Electronegativity/Ionic Radii

The video tutorial covers questions on electronegativity and ionic radii, focusing on determining the order of electronegativity for elements, identifying the smallest ion among isoelectronic species, and establishing the correct order of atomic and ionic radii. The tutorial emphasizes the use of the periodic table and the concept of isoelectronic species to solve these questions.

How does the atomic radius change as you move down a group in the periodic table?

What happens to the size of cations as they lose electrons, and why?

Identify the correct order of ionic radii for Fe3+, Fe2+, and Fe4+.