It’s the letter J. Go ahead and double check. We’ll wait. Don't miss these science "facts" that aren't actually true, either.
Bananas are radioactive
Bananas contain potassium, and since potassium decays, that makes them slightly radioactive. But it’s nothing you need to worry about. You’d need to eat 10,000,000 bananas at once to die of radiation poisoning, Forbes reports.