The Periodic Table: Atomic Radius, Ionization Energy, and Electronegativity

The video tutorial explains the periodic table, its historical development by Dmitri Mendeleev, and the arrangement of elements into periods and groups based on valence electrons. It covers periodic trends such as atomic and ionic radius, ionization energy, electron affinity, and electronegativity, highlighting the reasons behind these trends and their exceptions.

Discuss the exceptions to the ionization energy trend and their explanations.

How does electron affinity differ from ionization energy?

What factors contribute to the electronegativity of an atom?