What is electron configuration? Learn how to do electron configuration. See the relationship between electron configuration and the energy levels of an atom.

Learn if electrons are negatively charged particles. See the negative charge definition and the difference between positively and negatively charged particles.

An electron transition is when an electron moves from one energy level to another. During a transition, an electron either gains energy or loses energy. If the electron loses energy it emits …

Learn about the energy levels of an atom. Find out what an electron energy level is, discover how to find energy levels, and study examples of energy levels.

Understand what the electron affinity is. Explore the electron affinity trend across the periodic table of elements and the notable exceptions to these trends.

What is an electron cloud? Learn the definition of electron and electron cloud, learn about the electron cloud model, and view an electron cloud diagram.

Learn about the ground-state electron configuration of an atom. Understand the rules to write ground-state electron configuration and see the example.

Understand what an electron shell is by learning the electron shell definition. Learn about the electron shell energy levels and the valence electrons.

What is an electron transport chain (ETC)? Learn where the ETC takes place. See electron transport chain steps along with its reactants and products.

VSEPR is a theory used to predict the 3-dimensional shape of covalent molecules using the electron pairs that surround the central atoms in the molecule.