SciShow
What Really Happened the First Time We Split a Heavy Atom in Half
When scientists first split the atom, they didn’t realize what they’d done until physicist Lise Meitner figured out they had discovered what we now call nuclear fission.
Bozeman Science
Conservation of Nucleon Number
In this video Paul Andersen explains how the nucleon number and charge is conserved in all nuclear reactions and radioactive decay. Fission, fusion, alpha decay, beta decay, and gamma decay all conserve the number of neutrons and...
Bozeman Science
Energy-Mass Equivalence
In this video Paul Andersen explains how the law of conservation of energy applies to both energy and mass. Einstein showed that mass and energy are equivalent and that the amount of energy contained within matter can be calculated using...
Curated Video
Atom Structure: Electron Shells
Learn why electron shells are responsible for the properties of elements, and whether they are stable or have violent reactions. Chemistry - Atoms And Bonding - Learning Points. An element's reactivity is determined by the number of...
Curated Video
The Noble Gases
The noble gases were one of the last groups of elements to be discovered. From helium balloons to light bulbs, these gases have many uses in the world around us. Chemistry - Periodic Table - Learning Points. The noble gases are found in...
Curated Video
Chemistry - Shorthand (Noble Gas) Electron Configuration
Writing electron configurations can be a long and daunting task, until you learn the shortcut! Often times called the noble gas configuration, the shorthand notation will have you writing electron configurations very quickly! In this...
Curated Video
Periodic Table Song Noble Gases/Noble Gases/Noble Gases Song
Learn about all of the Noble Gases in Group 18 of the Periodic Table Helium, Neon, Argon, Krypton, Xenon, Radon, and Oganesson with this fun educational music video
Next Animation Studio
Radiation leak at China’s Taishan Nuclear Plant
An ‘imminent radiological threat’ has been reported at Taishan Nuclear Power Plant in China’s Guangdong province.
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...
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!
Professor Dave Explains
IIT/JEE Chemistry Practice #23: Graham's Law of Effusion
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
FuseSchool
Noble Gases - The Gases In Group 18
Have you ever heard the term "Noble Gases" before? In this video we are explaining the properties and real world examples of these gases of Group 18 of the periodic table, what they have in common and what distinguishes them individually.
Curated Video
The Fascinating Uses of Neon
In this video, we learn about the element neon and its significance in the periodic table. Despite its classification in the "sad" group of the periodic table, neon holds great value. The video highlights its use in electric lights,...
University of Nottingham
University of Nottingham: Periodic Table of Videos: Krypton
A look at krypton and how it is used with fluorine to create a laser. [1:09]