Even if you slept your way through high school chemistry, there was typically one day that ensured you were awake. That’s when, after an extensive safety lecture, the teacher brought out the alkali ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. If you remember high school chemistry class at all, you might remember what happens when you drop potassium and sodium ...

Potassium reacts quickly with water producing a lilac-coloured flame For example, when potassium is added to water, the metal melts and floats. It moves around very quickly on the surface of the water ...