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...
Professor Dave Explains
Practice Problem: Nuclear Reactions
We've learned about all the different types of nuclear reactions that can occur, so given this word problem, can you find the missing nuclide?
Professor Dave Explains
Radiometric Dating: Carbon-14 and Uranium-238
When you read about the ages of certain ancient artifacts, or even the age of the earth itself, how do we know such numbers? How can we know that a fossil is precisely 250 million years old? The key technique here is radiometric dating....