Hydrogen (Latin:
'hydrogenium', from Ancient Greek: hydro: "water" and genes:
"forming") is a chemical element in the periodic table that
has the symbol H and atomic number 1. At standard temperature
and pressure it is a colorless, odorless, nonmetallic, univalent,
tasteless, highly flammable diatomic gas (H2). Hydrogen is
the simplest and most abundant element in the universe.Wikipedia
Hydrogen
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