What metal reacts rapidly when exposed to oxygen?

potassium is a metal? news to me

Player #97184361, absolutely right! This contempt for science that we're seeing in the U. S. hurts everyone. There may be discoveries waiting that we will never see because a child was prevented from studying STEM. Science is the elegance with which god imbued creation

Potassium is not a metal

We are lucky to have dedicated scientists who understand and spend their time to discover and share their knowledge with the rest of the world, even those who never practice or interest in science. This kind of basic knowledge really helps one to think broadly while opening one original concepts. Whew what a mouthful. ! ! !