Crash Course
Stoichiometry: Chemistry for Massive Creatures
Moles exist in chemistry? These are not animals that live underground and dig through your gardens — they are quantities of elements. Learn about moles and how they help chemists determine amounts of substances (from atomic mass to grams).
Ricochet Science
Understanding Atomic Number and Atomic Mass
The amount of information you can learn about an element from the periodic table is amazing! Young scientists learn how to interpret the atomic number and atomic mass. Using a carbon atom as an example, the instructor describes the...
Ricochet Science
Isotopes
Altering the subatomic nature of an atom affects its properties. The video illustrates the idea of an isotope using Carbon-12, Carbon-13, and Carbon-14 as examples.
Berkeley University of California
Isotopes
Review carbon-12 with the final video in a 15-part series. The video first shows how to use mass spectrum results to determine the molar mass of carbon. It then determines the number of protons, neutrons, and electrons in carbon-12.
Berkeley University of California
Relative Atomic and Molecular Mass
Did you know that body armor actually contains uranium? Learn about how isotopes of the same element have different masses and unique physical properties.
Berkeley University of California
Examples of Isotopes
I so hope you'll learn about isotopes. Watch a video to understand that isotopes of an element have the same number of protons but different numbers of neutrons. Then solidify the knowledge by examining examples of hydrogen,...
TED-Ed
Is Radiation Dangerous?
Not all radiation is hazardous. Electromagnetic radiation is pure energy. Nuclear radiation comes from the atomic nucleus in which isotopes become unstable and radioactive. Share this video with your class to explore the types of...
Curated OER
Electricity and Matter Part 4 - Atoms and Elements
Consisting entirely of photos and simple graphics, this fundamental video is an informative presentation. Topics include elements, molecules, chemical bonds, atomic mass, isotopes, and ionization. Because it covers a wide range, it would...
Khan Academy
Khan Academy: Atomic Number, Mass Number, and Isotopes
Check your understanding of how to use the atomic number and the mass number to represent different isotopes. [9:43]
PBS
Pbs Learning Media: Dating Lava Flows on Mauna Loa Volcano, Hawaii
In this video segment adapted from NOVA, scientists search for carbonized remains of plants preserved in lava flows to find out how long it has taken rain forests on Hawaii to regenerate after a volcanic eruption.
Other
Socratic: Isotope Notation
Socratic is a website where students ask questions and the community teaches them the answer. Every answer becomes a resource for countless students in the future. With this link, students get excellent video instruction on isotope...
Tyler DeWitt, PhD
Science With Tyler De Witt: Atomic Mass: How to Calculate Isotope Abundance
This tutorial will go through the algebra and reasoning to figure out the amount of abundances of the isotopes, in percentages and in decimals.
Crash Course
Crash Course Chemistry #38: Nuclear Chemistry
In this episode, Hank welcomes you to the new age, where he talks about transmutation among elements, isotopes, calculating half-life, radioactive decay, and spontaneous fission. [9:58]
Tyler DeWitt, PhD
Science With Tyler De Witt: What Is a Weighted Average?
Watch this tutorial to answer the following questions: What is a weighted average? How do you calculate a weighed average? Weighted averages are used for atomic mass and atomic weight, based on the mass numbers of various isotopes.
Crash Course
Crash Course Physics #45: Nuclear Physics
It's time for our second to final Physics episode. So, let's talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it so useful to us as physicists and humans? In this video episode of Crash Course Physics, Shini sits...
Khan Academy
Khan Academy: Atomic Number, Mass Number, and Isotopes
How to use the atomic number and the mass number to represent different isotopes. [9:44]
Khan Academy
Khan Academy: Worked Example: Atomic Weight Calculation
A video showing an example of how to use the atomic mass and percent abundance of the carbon isotopes to calculate atomic weight. [4:26]
PBS
Pbs Learning Media: Crash Course Chemistry: The Creation of Chemistry: The Fundamental Laws
Take a historical perspective on the creation of the science, which didn't really exist until a super-smart, super-wealthy Frenchman put the puzzle pieces together. Hank tells the story of how we went from alchemists to chemists, who...
Sophia Learning
Sophia: Characteristics of Elements: Lesson 4
This lesson will present the basic properties and characteristics of elements. It is 4 of 4 in the series titled "Characteristics of Elements."
PBS
Pbs Learning Media: Crash Course Chemistry: Unit Conversion & Significant Figures
A unit is the frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the international...
PBS
Pbs Learning Media: Crash Course Chemistry: Water and Solutions: For Dirty Laundry
Dihydrogen monoxide (better known as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none of the...
PBS
Pbs Learning Media: Crash Course Chemistry: Silicon: The Internet's Favorite Element
In this episode, we talk about Silicon Valley's namesake and how network solids are at the heart of it all. Hank also discusses Solid-State Semiconductors, N-Type and P-Type Semiconductors, Diodes, Transistors, Computer Chips, and Binary...
PBS
Pbs Learning Media: Crash Course Chemistry: The History of Atomic Chemistry
Hank takes us on a tour of the earliest pioneers in the field of atomic theory. From Leucippus to Heisenberg to you - yes, YOU - the story of Atomic Chemistry is all wibbly-wobbly... and amazing. [9:40]
PBS
Pbs Learning Media: Crash Course Chemistry: Nuclear Chemistry Part 2: Fusion and Fission
Continuing our look at Nuclear Chemistry, Hank takes this episode to talk about Fusion and Fission. What they mean, how they work, their positives, negatives, and dangers. Plus, E=mc2, Mass Defect, and Applications of Fission and Fusion...