Hydrogen
Atomic No:
1
Name:
Hydrogen  ['haɪdrədʒən]
Formula:
H
Molar Mass:
1.0079

Hydrogen is the lightest element. It has 1 proton in its nucleus, and 1 electron circling around. Hydrogen element is abundant in the universe, it comprises ~90% of the materials in gaseous nebulae. Hydrogen has two isotypes, Deuterium (D) and Tritium (T). Deuterium has 1 proton and 1 neutron in its nucleus, while Tritium has 1 proton and 2 neutrons in its nucleus.

» Common Hydrogen compounds:
• Water, H2O
• Hydrogen Sulfide, H2S
• Hydrogen Gas, H2
• Ammonia Gas, NH3
• Hydrochloric Acid, HCl
• Sulfuric Acid, H2SO4
• Hydroiodic Acid, HI

» Hydride:
• Copper(II) Hydride, CuH2
• Calcium Hydride, CaH2
• Sodium Hydride, NaH
• Diboron Tetrahydride, B2H4
• Lithium Hydride, LiH

Hydrogen is also one of the most common element of organic compounds.
• Ethane, C2H6
• Acetic Acid, CH3COOH
• Propanol, C3H7OH
• Butane, C4H10

»Hydrogen reactions:
• 2H2 + O2 = 2H2O
• 2NH3 = N2 + 3H2



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