How do bananas have potassium in them, if it is a very reactive element? ?
Potassium ELEMENT is reactive. Potassium COMPOUNDS are not. For example, potassium chloride is often used to salt the street during winter. Potassium chloride is much less corrosive that sodium chloride that used to be used. The potassium in bananas is not in elemental form, it is in compound form — combined with other elements.
