PBS
How Are Quasiparticles Different From Particles?
The device you’re watching this video on is best understood by thinking about positive and negative charges moving around a circuit of diodes and transistors. But the only elementary particle actually flowing in the circuit is the...
Crash Course
Nucleophiles and Electrophiles - Crash Course Organic Chemistry
Organic reactions are kind of like carefully choreographed fight scenes, and nucleophilic attack is a key move. This episode of Crash Course Organic Chemistry is all about nucleophiles and electrophiles, or what happens at those...
Bozeman Science
Lewis Diagrams and VSEPR Models
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...
Crash Course
Polarity Resonance and Electron Pushing - Crash Course Organic Chemistry
We’ve all heard the phrase “opposites attract.” It may or may not be true for people, but it’s definitely true in organic chemistry. In this episode of Crash Course Organic Chemistry, we’re learning about electronegativity, polarity,...
Bozeman Science
Drawing Lewis Dot Diagrams
Mr. Andersen shows you how to draw Lewis Dot Diagrams for atoms and simple molecules.
Bozeman Science
Atoms and the Periodic Table
Mr. Andersen describes atomic structure and tours the periodic table.
Bozeman Science
Metallic Bonding
In this video Paul Andersen explains how metallic bonding structure creates the different properties of metals. The electron sea model explains how the positive nuclei are locked into a negative sea of delocalized electrons. This sharing...
Curated Video
Unlocking Carbon's Secrets Electronic Configurations and Valency in the Carbon Family
Group 14 elements are carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). Their valence electron configuration is unique and is shown by the symbol ns²np². This set-up shows that there are two electrons in the outermost s...
Curated Video
Valence Electrons & Lewis Dot Diagrams - what are they and how do I draw them?
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,...
Curated Video
Why does chemistry happen?! Element Stability and the Octet Rule!
Why does chemistry happen?? Why do ions form?? Why do elements bond together?? These are all important questions and the answer comes back to one very important principle in chemistry and that is element stability. Elements are stable...
Curated Video
What Are Valence Electrons And How To Find Them?
Valence electrons are the electrons that are located in the outermost shell of an atom. In other words, these are the electrons that can be gained or lost during a chemical reaction. In order to determine the number of valence electrons...
Curated Video
Charges in Atoms, Atomic Models, and Quantum Numbers
This video explains how the different particles in an atom have charges, how the different particles affect the overall charges of an atom, and how atomic models are created.
Visual Learning Systems
Forming Bonds: How Atoms Bond
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...
Catalyst University
General Chemistry | Lewis Structures (Example #2)
In this video, we will determine the Lewis structure for a given compound.
Mazz Media
Predicting How Elements Behave
This videos provides a quick review of the octet rule and then goes on to describe how it can be used to predict the behavior of different elements and the bonds they form. Students will learn to relate patterns in the periodic table to...
Professor Dave Explains
Limitations of VSEPR Theory
We've learned about VSEPR theory, and we know how to use it to predict molecular geometry for a variety of organic molecules. But in fact, there are situations where predictions made with VSEPR theory do not line up with experimental...
msvgo
The Carbon Family
It describes electronic configuration of the elements of group 14, their physical, chemical properties and their uses.
Professor Dave Explains
Practice Problem: VSEPR Theory and Molecular Geometry
What's with all these shapes? Let's practice assigning hybridization, electron-domain geometry, and molecular geometry. Octahedral! Tetrahedral! Linear! Pyramids and see-saws and what not! Chemistry is fun, isn't it?
Professor Dave Explains
IIT/JEE Chemistry Practice #20: Hybridization
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #17: Molecular Geometry
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
The 18 Electron Rule for Transition Metal Complexes
Ok, so we understand how ligands bond to metals to form transition metal complexes, but how many ligands will fit? Well, remember the octet rule from general chemistry? There is a similar concept that we can apply here, which is called...
Schooling Online
Chemistry Properties and Structure of Matter: Properties of Matter - The Periodic Table
Long Jane Silver buys an antique table, despite an old sailor’s warning that it is haunted! Is she ready to discover what lies waiting inside? This lesson will introduce the periodic table of elements and explain how it is...
Professor Dave Explains
Metallic Bonds
We've learned about ionic and covalent bonds, so we understand the interactions that will occur between a metal and a nonmetal, or between two nonmetals. But what about two metals? Metallic bonding! This ends up being sort of like ionic...