In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...

Models are great, except they're also usually inaccurate. In this episode of Crash Course Chemistry, Hank discusses why we need models in the world and how we can learn from them... even when they're almost completely wrong....

Mr. Andersen shows you how to draw Lewis Dot Diagrams for atoms and simple molecules.

Mr. Andersen describes atomic structure and tours the periodic table.

Mr. Andersen shows you how to determine if a bond is nonpolar covalent, polar covalent, or ionc.

The Stern-Gerlach experiment, which took place in 1922, was the most important proof that electrons have spin and that they have a spin quantum number. A stream of silver atoms was sent through an experiment using a magnetic field...

Hybridization Process: Carbon atoms undergo sp² hybridization, mixing one 2s and two 2p orbitals to form three sp² hybrid orbitals arranged in a trigonal planar geometry (120° bond angles). Bond Formation: Two sp² orbitals form sigma (σ)...

Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. These structures are crucial in understanding how atoms share or transfer electrons to form stable...

Covalent bonds form when atoms share electrons to complete their valence shells, creating strong and directional interactions.

Electronegativity differences between atoms determine the type of bond: ionic bonds form when the difference is large, while covalent bonds form with similar electronegativity.

Valence electrons are the electrons in the outermost energy level of an atom. They are important because they are involved in the chemical bonding of our elements which helps determine the reactivity of elements. In order to be stable,...

Never draw a Lewis Structure wrong again! In this video, we’ll show you 4 simple steps to master the art of drawing Lewis Structures—an essential skill in chemistry that helps explain molecular behavior and the...

Upon viewing the Forming Bonds video series, students will be able to do the following: Understand that matter is made up of tiny particles called atoms. Explain that atoms consist of many different types of subatomic particles including...

Learn the basics about shielding as a part of the atomic structure, within the overall properties of matter topic.

If movies have taught us anything, it’s that the first person to enter a spooky cave is the first to get in trouble! Will First Mate Phil survive to see the light of day? This lesson will shine a light on the chemical properties of...

Upon viewing the Forming Bonds video series, students will be able to do the following: Understand that matter is made up of tiny particles called atoms. Explain that atoms consist of many different types of subatomic particles...

Practice REAL problems from actual past IIT/JEE exams with Professor Dave!

It's time to check out Group 1 on the periodic table, the alkali metals. This includes lithium, sodium, potassium, rubidium, cesium, and francium. What can we say about their properties, reactivities, and applications? Let's find out!

It explains periodicity in electron gain enthalpy and electronegativity.

In this video, we will determine the Lewis structure for the compound, CHCl3 (chloroform).<br/>

What is an ion? What role does it have to play in the structure of atoms? Find out in this Chemistry Journey video by The Fuse School.

Learn the basics about the ionic bonding of calcium chloride, lithium fluoride and potassium oxide, as a part of the overall properties of matter topic. An ionic bond is defined as the electrostatic attraction between oppositely charged...

This video explains all about Ionic and Covalent bonding :) enjoy!

Why is the periodic table arranged the way it is? There are specific reasons, you know. Because of the way we organize the elements, there are special patterns that emerge. And you know how Professor Dave feels about patterns. He likes...