What Chemical Element Makes Bananas Radioactive?

What Chemical Makes Bananas Radioactive?

Bananas are one of the most radioactive foods. The element that makes bananas official radioactive is an isotope of potassium. Potassium consists of three isotopes: K-39 (93.3%), K-41 (6.7%) and radioactive K-40 (0.01%). Every naturally occurring potassium has the same three varieties in the same percentage. There is really no danger from the radiation coming from the K-40, as it makes up a very low percentage of total potassium. Actually, one should consume about 10 million bananas at once, to die from radiation poisoning!

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