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...
PBS
Pbs Learning Media: Crash Course Chemistry: The Nucleus
Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of combinations to form everything. In this inaugural episode of Crash Course Chemistry, we start out with one of the biggest...