Khan Academy: Elements and Atoms

Sal does a phenomenal job introducing students to the atom, and the history that goes along with how we understand and view atoms today. Students are introduced to the atomic number, and how elements are organized into the periodic table...

A video lecture explaining elements and their differing properties. Also discussed is how elements relate to atoms and the particles that make up an atom. [13:08]

A video lecture that discusses how elements relate to atoms. Also discussed are protons, electrons, and neutrons. [13:08]

Learn about the relationship between elements and atoms in this video lecture. Understand the basics of how protons, electrons, and neutrons make up an atom and how elements relate to atoms. [13:09]

Did you know matter is made up of atoms? In this article learn about the smallest unit of matter called the atom.

A video investigating the makeup of an atom. Learn that atoms are composed of protons, neutrons, and electrons. Understand that protons and neutrons determine the mass of an atom. Also, the atomic number gives you the number of protons...

Learn the fundamental properties of atoms in this article. Understand the definition of atomic number, atomic mass, and isotopes. [6 min, 50 sec]

This resource provides a summary of some fundamental math and science concepts that will be helpful in learning chemistry. Links are provided to help you learn or review the material on Khan Academy.

An overview of the atom. [21:05]

An explanation of the sizes of different atoms due to the number of electrons that are orbiting in energy shells. [11:25]