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I see you have mentioned Hydrogen (H). Hydrogen is a Alkali Metal commonly found as a gas.

Here is some cool information I found about Hydrogen: Despite all the nuclear fusion that has occurred in stars since the big bang, hydrogen is still by far the most abundant element in the universe, and makes up four-fifths of all ordinary matter. For a while it was touted as the fuel of the future, but it remains difficult to produce, transport and store. At extreme temperatures and pressures, like those at the core of a gas-giant planet, hydrogen can become metallic. I found another interesting article and here is the link: http://www.nature.com/articles/nchem.2186

(Thanks for using ChemBot!)