Electronic structure of atoms

This course is a part of Chemistry, a 18-course Topic series from Khan Academy.

So we know that all matter is made up of atoms, but what is an atom made out of? Chemists describe the structure of atoms using models. This section will cover the Bohr model, photoelectric effect, absorption and emission spectra, quantum numbers, and electron configurations.

This course contains 4 segments:

History of atomic structure

How did scientists figure out the structure of the atom, and how did they discover subatomic particles? The answer is X-ray vision (just kidding!). In this section, we will discuss some of the awesome experiments in science history that led to our modern understanding of atomic structure.

Bohr's model of the hydrogen atom

Atomic theory is not Bohr-ing! While it doesn't work for atoms with more than one electron, the Bohr model successfully predicts the emission spectrum of hydrogen.

Quantum numbers and orbitals

In this tutorial, we will see how the quantum numbers predict the orbitals available in different energy levels.

Electron configurations

In this tutorial, Sal and Jay show how to write electron configurations.