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Curated Video
Understanding Electronic Configurations of Atoms and Ions
This video discusses the electronic configuration of atoms and ions, and how the positioning of elements in the periodic table affects their electronic structure. It further discusses the electronic configuration of different elements...
TMW Media
Atomic Mass of an Element
This program covers the very important topic of atomic mass of an element. We begin by discussing the structure of the atom and how this can be used to arrive at a number that represents the relative mass of the atom. This quantity will...
Professor Dave Explains
Carbon: The Element of Life
You may have heard that carbon is the element of life. What does that mean? Let's find out!
Professor Dave Explains
Reduction of Esters With DIBAL-H
We know about a lot of different oxidizing and reducing agents that facilitate a variety of different transformations. But we haven't touched upon the precise transformation that can be achieved by diisobutylaluminum hydride, also known...
Professor Dave Explains
Practice Problem: Atomic Radii and Ionic Radii
We've learned all about the periodic trends, including atomic radius, so let's put our knowledge to the test! Here we will have to put some atoms in order of increasing atomic radius, and then do the same thing for some ions and their...
TMW Media
Naming Molecular Compounds
This program covers the very important topic of naming molecular compounds. We begin by discussing how molecular compounds form and how they arise in nature. We discuss in detail the naming method for molecular compounds including all of...
TMW Media
Atomic Number, Mass Number & Isotopes Part 1
This program covers the very important topics known as atomic number, mass number, and isotopes. We begin by discussing the structure of the atom and how the atomic number is used to organize the periodic table. We discuss the mass...
TMW Media
Atomic Number, Mass Number & Isotopes Part 2
This program covers the very important topics known as atomic number, mass number, and isotopes. We begin by discussing the structure of the atom and how the atomic number is used to organize the periodic table. We discuss the mass...
Curated Video
Titration Calculations: Understanding Concentration and Molar Concentration
The video is a lecture on titration calculations. The video is divided into two parts, with the first part focusing on concentration and molar concentration. The professor explains the concept of concentration and how it is calculated...
Rachel's English
English Vocabulary Challenge Day 14
You can improve your English vocabulary and English pronunciation by studying these vocab words, repeating them along with me to master each sound. We’ll study each word by focusing on how Americans actually pronounce it, and we’ll...
TMW Media
Ionic Compounds
This program covers the very important topic of ionic compounds. We discuss how ionic compounds form and how to predict ahead of time what the chemical formula will be when given the atoms that form the ionic compound. We spend a great...
Curated Video
I WONDER - Where Do We Use The Periodic Table?
This video is answering the question of where do we use The Periodic Table.
Professor Dave Explains
Periodic Table Part 10: Transition Metals, Lanthanides and Actinides
With the main-group elements covered, it's time to check out the other sections of the periodic table, those being the transition metals, as well as the lanthanides and actinides. We rarely discuss most of these elements, so what are...
Professor Dave Explains
IIT/JEE Chemistry Practice #15: Electronegativity/Ionic Radii
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Ionization Energy
When we learned about periodic trends, we learned about ionization energy. Just how much energy is required to remove an electron from an atom? What about a second electron, or a third? Let's compare a few different ionizations and see...
Professor Dave Explains
Periodic Table Part 9: Noble Gases (He, Ne, Ar, Kr, Xe, Rn, Og)
It's time to check out Group 18 on the periodic table, the noble gases. This includes helium, neon, argon, krypton, xenon, radon, and oganesson. What can we say about their properties, reactivities, and applications? Let's find out!
TMW Media
Ionic Compounds with Polyatomic Ions
This program covers the very important topic of ionic compounds with polyatomic ions. We discuss the concept of a polyatomic ion as simply the grouping of atoms that has a net charge associated with it. We then discuss how these...
Curated Video
I WONDER - How Was The Periodic Table Named?
This video is answering the question of how was The Periodic Table named.
Curated Video
The Importance and Applications of Potassium: A Nutrient and Element
Learn about potassium, an important nutrient and element found in bananas. The video covers the discovery and properties of potassium, its role in the human body, its presence in various foods, and its uses in agriculture and other...
Professor Dave Explains
Periodic Table Part 8: Halogens (F, Cl, Br, I, At, Tn)
It's time to check out Group 17 on the periodic table, the halogens. This includes fluorine, chlorine, bromine, iodine, astatine, and tennessine. What can we say about their properties, reactivities, and applications? Let's find out!
Professor Dave Explains
Practice Problem: Electron Configuration and Quantum Numbers
Everyone has trouble with electron configurations and quantum numbers. Well today we are going to settle the score with a little practice!
Professor Dave Explains
IIT/JEE Chemistry Practice #14: Ionization Energy
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!