Kossel-Lewis Theory: The Foundations of Chemical Bonding

The video explains the structure of atoms, focusing on valence and core electrons. It uses sodium as an example to illustrate electron configuration and discusses the role of valence electrons in chemical reactivity and bond formation. The octet rule is introduced, explaining how atoms achieve stability by acquiring eight electrons in their outermost shell. The formation of ionic bonds, exemplified by sodium chloride, and covalent bonds, as seen in chlorine molecules, are detailed, highlighting the processes of electron transfer and sharing.

What are the two types of electrons present in an atom according to the theory discussed?

Explain the significance of valence electrons in chemical reactivity.

What is the octet rule and how does it relate to chemical bond formation?

Describe the process of ionic bond formation using sodium chloride as an example.

How do chlorine atoms form a molecule, and what rule do they satisfy in the process?