Fundamentals of Chemical Bonding and Structures

📋 Course Outline

1. Nature of compounds
2. Chemical bonding types
3. Ions and electron transfer
4. Group 1 and 7 reactions
5. Ionic and covalent structures

📖 1. Nature of compounds

🔑 Key Concepts & Definitions

Compound: A substance formed when atoms of two or more elements chemically combine, resulting in a new substance with properties different from the individual elements.

Atom: The basic unit of an element, consisting of a nucleus surrounded by electrons. Atoms can transfer or share electrons during chemical bonding.

Element: A pure substance made up of only one type of atom, characterized by its number of protons. Elements can combine to form compounds.

Molecule: A group of atoms bonded together, representing the smallest unit of a compound that retains its chemical properties. Molecules in compounds formed from non-metals are held together by covalent bonds.

📝 Essential Points

Compounds are substances in which atoms of two or more elements are chemically combined. When atoms form chemical bonds, they do so by transferring or sharing electrons in their outer shells to achieve the electron arrangement of a noble gas.

Compounds formed from non-metals consist of molecules held together by covalent bonds. These molecules are discrete groups of atoms sharing electrons.