Скачать или смотреть More Common than You Think; The 10 Most Common Radioactive Isotopes

Uranium and thorium are surprisingly not the most common radioactive isotopes in the Earth's crust. Instead, that title goes to a specific isotope of calcium or rubidium depending on what definition you are using. this video discusses the 10 most common naturally occurring isotopes that occur on Earth through the perspective of a geologist.

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Sources/Citations:
[1] U.S. Geological Survey
[2] Wikimedia Commons (links specified in video graphics), CC BY-SA 4.0
[3] https://images-of-elements.com/, by: https://images-of-elements.com/, Photo link: https://images-of-elements.com/rubidi..., Rubidium Element Page: https://images-of-elements.com/rubidi..., CC BY 3.0

0:00 Radioactive Isotopes
1:09 Calcium-48
2:38 Rubidium
3:14 Uranium & Thorium
3:59 Potassium
4:49 REEs & Rhenium