I was reading sometime ago that the hydrogen in Jupiter's core was a solid "metal"(with one electon?). This may be an uunanswerable thought question, but its been troubling me! Lets say earths scientists found a way to make hydrogen metal. what would its properties be? Density, etc., (this is assuming that we could keep it from vaporizing and in a "metallic" state. I didn't know where to post this one!