SciShow
The 17+ Different Kinds of Ice!
Ice is ice, right? Wrong! From the vacuum of deep space to the inside of ice giant planets, ice gets stretched and squished into way more forms than what we find here on Earth.
SciShow
Antarctic Lava to Pink Snow: The Science of Winter
"If you live in the northern hemisphere, there's a decent chance you're in a winter wonderland right now. Settle in with a hot drink for this winter compilation and learn about some of the interesting things that make winter wondrous!
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...
SciShow
The 17+ Different Kinds of Ice!
Ice is ice, right? Wrong! From the vacuum of deep space to the inside of ice giant planets, ice gets stretched and squished into way more forms than what we find here on Earth.
Curated Video
Mastering Lewis Structures: Essential Rules for Drawing Bond Maps
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...
Curated Video
VSEPR Theory - lone electron pair influence
Bond Angle Distortion: Lone pairs reduce bond angles between bonding pairs. For example, in a molecule like NH₃ (ammonia), the ideal tetrahedral angle of 109.5° is compressed to around 107° due to the presence of a lone pair on nitrogen....
Curated Video
VSEPR Theory Postulates: The Rules Behind Molecular Geometry
The Valence Shell Electron Pair Repulsion (VSEPR) theory predicts molecular shapes by focusing on the repulsion between electron pairs surrounding a central atom. The main postulates include: Electron Pair Repulsion: Electron pairs...
Curated Video
VSEPR Theory: Predicting Molecular Shapes with Ease
VSEPR postulates state that the geometry of a molecule depends on the number and arrangement of bonding and lone electron pairs around the central atom
Curated Video
Expanded Octets & Odd Electron Molecules: PCl5, SF6 Breaking the Octet Rule
Molecules like PF5, SF₆ defy the octet rule, with expanded valence shells or unpaired electrons, arising from the availability of d-orbitals or radical stability
Curated Video
Multiple Covalent Bonds: The Power of Double and Triple Bonds
Double and triple bonds involve the sharing of two or three pairs of electrons, providing additional stability and influencing molecular properties like rigidity and reactivity
Curated Video
Bond Fission Explained: Homolytic vs. Heterolytic Splits
Bond fission, the process of breaking chemical bonds, can occur in two ways: homolytic and heterolytic. In homolytic fission, the bond breaks evenly, with each atom receiving one electron, resulting in the formation of free radicals. In...
Curated Video
Nucleophiles: The Atom Seekers of Organic Chemistry
Nucleophiles, often referred to as "nucleus lovers," are chemical species that donate an electron pair to form a bond. They attack positively charged or electron-deficient atoms in a molecule, making them key agents in substitution and...
FuseSchool
What Shapes Do Simple Molecules Make
Learn the basics about the shapes of simple molecules, when learning about properties of matter. In reality the shapes of simple molecules are 3-D molecules and should be visualised as such. Imagine now the central carbon atom surrounded...
Sophia Learning
Sophia: Vsepr: Electron Pairs: Lesson 1
This lesson will explain how to identify the number of shared pairs and unshared pairs of electrons surrounding the central atom using Lewis dot diagrams. It is 1 of 2 in the series titled "VSEPR: Electron Pairs."
Sophia Learning
Sophia: Paired and Unpaired Electrons
Using orbital diagrams, this video tutorial illustrates the difference between paired and unpaired electrons in an atom. [3:42]
Sophia Learning
Sophia: Vsepr: Electron Pairs: Lesson 2
This lesson will explain how to identify the number of shared pairs and unshared pairs of electrons surrounding the central atom using Lewis dot diagrams. It is 2 of 2 in the series titled "VSEPR: Electron Pairs."