Main Group Chemistry, | (tutorial Chemistry Texts)

electron shells, leading to predictable trends in reactivity, bonding, and geometry. 1. Periodic Trends (The Foundation)

Traditionally "inert," though heavier gases like Xenon can form compounds with highly electronegative atoms (e.g., XeF4cap X e cap F sub 4 4. Key Concepts to Master The Inert Pair Effect: Down Groups 13–16, the electrons become harder to remove. This explains why Lead ( ) prefers a +2 state instead of +4. MAIN GROUP CHEMISTRY, (Tutorial Chemistry Texts)

"Salt-formers." Highly electronegative and exist as diatomic molecules ( F2cap F sub 2 Cl2cap C l sub 2 leading to predictable trends in reactivity

The bridge. Carbon is the basis of life; Silicon is the basis of technology. MAIN GROUP CHEMISTRY, (Tutorial Chemistry Texts)

This is where chemistry gets diverse, moving from metals to metalloids to non-metals.