Hydrogen

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Atomic symbol:	H
Atomic number:	1
Group:	1
Period:	1
Series:	Nonmetals

Natural Isotopes

H1
H2 Deuterium

Synthetic Isotopes

H3 Tritium
- 12.33 year half life. Undergoes Beta Decay to become Helium 3(He3)
H4
- Undergoes immediate Neutron Decay to become Tritium(H3)

Hydrogen is the simplest element, the first element formed after the big bang, the most common element in the universe, and one of the needed elements believed to be in critically short supply on Luna. Its most common nuclear permutation is a single proton, although it can also exist with one (deuterium) or two (tritium) neutrons. Hydrogen is most commonly found combined with oxygen in the form of water (H₂O).

Common uses of hydrogen which may be applied on the moon include: rocket fuel, hydrogen fuel cells, ilmenite reduction, reduction of metal ores and nitrogen fixation. Deuterium/tritium can be used in nuclear fission and fusion.

Hydrogen has possibly been detected at the Lunar poles, but the amount available has been a topic of controversy.