Periodic Table of the Elements: Hydrogen

Related article: Periodic Table of the Elements (table)Periodic Table of the Elements
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Periodic Table of the Elements: Hydrogen
Atomic Number:1
Atomic Symbol:H
 Hydrogenhydrogen
[Gr.,=water forming], gaseous chemical element; symbol H; at. no. 1; interval in which at. wt. ranges 1.00784–1.00811; m.p. −259.14°C;; b.p. −252.87°C;; density 0.08988 grams per liter at STP; valence usually +1.
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Atomic Weight:[1.00784; 1.00811]
Electron Configuration:1
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