Visual Learning Systems
The Periodic Table: Mass Number and Atomic Mass
This program makes the Modern Periodic Table come alive to students. Numerous real-life examples of elements are exemplified in the table. Animations and graphics illustrate concepts not easily achieved through other instructional...
Professor Dave Explains
Applications of Dendrochronology
Now that we know a bit about what dendrochronology is and how it's done, what can it be used for? In fact, tree ring studies are highly relevant in a multitude of other fields, including archaeology, ecology, forestry, paleoclimatology,...
Curated Video
Introduction to Atoms and Atomic Notation
This video provides an overview of the structure and notation of atoms, including the positively charged nucleus, negatively charged electrons, protons, neutrons, and the arrangement of electrons in energy levels. It also explains how to...
Professor Dave Explains
Periodic Table Part 1: Hydrogen
It's time to start our survey of the periodic table, and we are going to start with just one element, hydrogen. This is the most abundant element in the universe by a wide margin. What does it do? What are its properties? What are its...
Next Animation Studio
Korea’s tokamak artificial sun sets new plasma record
A tokamak is a machine that creates three powerful magnetic fields to keep a superheated plasma confined.
Weatherthings
Weather Things: Carbon Dioxide
Climate is the average type of weather that a region has. It is defined by temperature and moisture. Proximity to oceans and large mountain ranges defines climate too, depending upon the prevailing wind. While climates change over...
Curated Video
Understanding Mass Numbers, Atomic Numbers, Isotopes, and Counting Particles in Atoms
The video explains the concepts of mass numbers, atomic numbers, and isotopes in chemistry. It discusses the structure of an atom, the relationship between the number of protons and electrons in neutral atoms, and how elements are...
FuseSchool
Spectrometry
Learn the basics about Spectrometry. What is spectometry and its use? Find out more in this video!
Curated Video
Introduction to Atoms: Representation and Interpretation
In this video, the smallest particle of a chemical element, the atom, is discussed along with its various representations. The video provides information on the structure of atoms and their various components, including the nucleus,...
Professor Dave Explains
IIT/JEE Chemistry Practice #12: Atomic Structure
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Isotopic Abundance and Atomic Mass
In the general chemistry series we learned about nuclide symbols, which all imply a specific atomic number and mass number. Associated with this were isotopes, and average atomic mass. Given the relative abundances of all the isotopes of...
Science360
Ice Core Secrets Could Reveal Answers to Global Warming - Science Nation
At the Stable Isotope Lab in Boulder, Colo., scientists are doing a lot of the same things that those CSI folks do on TV. But instead of being "crime scene investigators," these experts are more like "cold scene investigators."...
msvgo
Atomic Models - Thomson and Rutherford
It explains Atomic Models - Thomson model and Rutherford atomic model.
Science360
Water Isotopes Leave Fingerprints For Climate Scientists
This project observes and analyzes the stable isotope composition of water vapor and precipitation, primarily at the 300 meter Boulder Atmospheric Observatory tower. The measurements are made using an optical measurement technology which...
FuseSchool
In Depth: Atomic Mass Units
Learn the basics about Atomic Mass Units. The atomic mass is used to find the average mass of elements and molecules and to solve stoichiometry problems. Find out more in this video!
FuseSchool
Isotopes
Isotopes | Matter | Physics | FuseSchool The periodic table divides the world into just over one hundred elements, sorted by their chemical properties. But did you know that each kind of atom is made up of a different combination of...
Curated Video
Nuclear Fission and Fusion: Release of Energy from Atomic Nuclei
The video explains two processes involving atomic nuclei that release large amounts of energy - nuclear fission and nuclear fusion. The video explains how uranium 235 can be made to undergo nuclear fission and also discusses the concept...
Curated Video
Introduction to Mass Number, Atomic Number, and Isotopes
The video explains the fundamental concepts of mass number, atomic number, and isotopes. It begins by presenting a diagram of an atom and the three particles contained within it - neutrons, protons, and electrons - and their charges. The...
FuseSchool
PHYSICS - What Are Radioactive Isotopes - Properties of Matter
The identity and chemical properties of any atom are determined by the number of protons in its nucleus. As atoms get bigger and heavier, the nuclei get bigger and heavier and the protons need a “nuclear glue” to help hold them together....
FuseSchool
Properties of Hydrogen
Hydrogen is a gas at room temperature, and is the first element in the periodic table. It has the chemical symbol H, but is usually found as a diatomic molecule of H2. It reacts with oxygen to form water. Hydrogen is a colourless,...
msvgo
Atomic Masses and Composition of Nucleus
This nugget describes the nucleus of an atom. It talks about the various aspects of a nucleus like atomic number, atomic mass unit, isotopes and isobars, with examples.