Would liquid or solid Hydrogen be considered to be a metal?
Under the right conditions, both the liquid and solid form of hydrogen can behave as a metal. However, it requires a great deal of pressure for hydrogen to achieve that state. http://en.wikipedia.org/wiki/Metallic_hydrogen http://www.wisegeek.com/what-is-metallic-hydrogen.htm http://www.aip.org/pnu/1996/split/pnu263-1.
