Professor Dave Explains
Resonance Structures/Assigning Formal Charge
Looking at resonance structures for organic molecules and learning how to determine formal charge.
Professor Dave Explains
Crystal Field Theory
We are used to using a theory like VSEPR theory to predict molecular geometry, but unfortunately with coordination compounds, things are not so simple, because of those pesky d orbitals on the central metal atom. Crystal field theory is...
msvgo
Filling of Orbital in Atoms
This nugget gives idea about Aufbau Principle, n+l rule, Pauli's Exclusion Principle and Hund's Rule.
Professor Dave Explains
Valence Bond Theory, Hybrid Orbitals, and Molecular Orbital Theory
Alright, let's be real. Nobody understands molecular orbitals when they first take chemistry. You just pretend you do, and then in your next course you learn them a little better. And then a little better than that. And five years later...
msvgo
Covalent Compounds-Lewis structures
It explains the Kossel-Lewis approach to chemical bonding, octet rule, covalent bond and classify its different types, Lewis dot structures of covalent compounds.
Encyclopaedia Britannica
Electron Orbitals and Energy Levels
Overview of sublevels and shells in orbitals.
Professor Dave Explains
Conductivity and Semiconductors
Why do some substances conduct electricity, while others do not? And what is a semiconductor? If we aim to learn about engineering and technology, this will be a very important concept, so let's go through the basics now!
Professor Dave Explains
Pseudo Noble Gas Electron Configurations
We've learned about electron configurations, and also about how this plays into ionization, given that elements will tend to ionize in such a way so as to achieve noble gas electron configuration. But certain transition metals will seek...
Professor Dave Explains
VSEPR Theory and Molecular Geometry
Did you know that geometry was invented by molecules? It's true! Until the first stars went supernova and littered all the elements across the cosmos, everything was simply spheres, from protons to stars. But then, under cooler planetary...
Getty Images
Neon atom. Diagram of an atom of the element neon, showing the central nucleus surrounded by electron orbitals.
Neon is the tenth element, and has ten protons (red) in its nucleus, along with ten neutrons (blue). Neon has ten electrons, and each of its orbitals can hold a maximum of two. Orbitals are filled from the lowest energy (nearest the...
Getty Images
Oxygen atom. Diagram of an atom of the element oxygen, showing the central nucleus surrounded by its electron orbitals.
Oxygen is the eighth element, and has eight protons (red) in its nucleus, along with eight neutrons (blue). Oxygen has eight electrons, and each of its orbitals can hold a maximum of two. Orbitals are filled from the lowest energy...
Getty Images
Nitrogen atom. Diagram of an atom of the element nitrogen, pulling back from the central nucleus to reveal the surrounding electron orbitals.
Nitrogen is the seventh element, and has seven protons (red) in its nucleus, along with seven neutrons (blue). Nitrogen has seven electrons, and each of its orbitals can hold a maximum of two. Orbitals are filled from the lowest energy...
Getty Images
Nitrogen atom.
Diagram of an atom of the element nitrogen, showing the central nucleus surrounded by its electron orbitals. Nitrogen is the seventh element, and has seven protons (red) in its nucleus, along with seven neutrons (blue). Nitrogen has...
Getty Images
Helium atom. Diagram of an atom of the element helium, showing the central nucleus surrounded by its electron orbital.
Helium is the second element, and has two protons (red) in its nucleus, along with two neutrons (blue). Helium has two electrons, which occupy the lowest energy 1s orbital (green sphere). Each orbital can hold two electrons, so this 1s...
Khan Academy
sp3 Hybridized Orbitals and Sigma Bonds, Structure and Bonding, Organic chemistry
This video reviews many of the concepts covered in the regular chemistry playlist. Sal tries to draw and clarify how to visualize the multiple x, y, and z orbitals. He elaborates on probability clouds and the sp3 orbital configuration of...
Khan Academy
Shells, Subshells, and Orbitals
A more detailed description and definition of orbitals, and the role they play in the atomic world, are the focus of this video. The "P Orbitals" are described by taking a close look at the carbon element's properties. The periodic table...
SciShow
How To Build A Space Station
Space stations provide opportunities for space exploration and research. Individuals see how scientists build space stations and put them into space. Viewers explore the history of space stations, the different types of space stations...
Socratica
Chemistry: Introduction to the Periodic Table
Introduce your class to the most important table they will never dine on! From a larger playlist covering chemistry concepts comes a thorough walk through of the periodic table. The narrator details the structure of the table, how...
JFR Science
Electron Configurations: Orbital Box Diagrams
Configure your lesson plans to include a great resource. An informative YouTube video in the JFR Science playlist explains how to use orbital box diagrams to express electron configurations. It shows several examples of both expanded and...
JFR Science
Electron Configurations: Writing Condensed and Expanded Versions
It's hard to keep track of electrons ... that's where electron configurations come to the rescue. A short video in the JFR Science series highlights electron configurations and how to write both condensed and expanded notation. It...
Socratica
Chemistry: How to Write Electron Configuration
Before determining which electrons are available for reactions, scientists identify each atom's electron configuration. An informative video from Socratica's chemistry playlist includes how to write electron configurations. It explains...
Veritasium
What Are Atoms and Isotopes?
Atoms may make up everything, but what are they made of? The narrator asks patrons at a local park what atoms are in an interview-style video. He then creates an atomic model and adds a neutron to it, opening the discussion to isotopes.
Fuse School
Drawing Electron Configuration Diagrams
Demonstrate the steps to drawing electron configuration diagrams. A video lesson shows how to use the periodic table to determine the number of electrons in an element and then create the diagrams. The instructor leads your class through...
MinutePhysics
What is Touch?
Share a touching moment with your physics class! Discover the nature of touch in an animated video. Scholars learn what actually happens at the subatomic level when they sit in a chair. The narrator also examines the...