Why does hydrogen occur in a diatomic fom rather than in a monoatomic form under nomal conditions?

The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter noble gases are due to the weak dispersion forces between the atoms and the absence of other interatomic interactions, The direct reaction of xenon with fluorine leads to a series of compounds with oxidation numbers +2, 4 and +6, XeF_4 reacts violently with water to give XeO_3 . The compouds of xenon exhibit rich stereochemistry and their geometries can be deduced considering the total number of electron pairs in the valence shell. Argon is used in arc welding because of its

Why does NH3 form hydrogen bond but 'PH3 does not?

Why does sound travel faster in iron than in air?

Why does nitrogen show catenation properties less than phosphourus?

Why is hydrogen formed at the cathode instead of sodium in electrolysis of aqueous sodium chloride?

Both propane and carbon dioxide deffuse at the same rate under identical conditions of temperature and pressure. Why?

Why does magnesium has a higher ionization enthalpy than sodium?