Question

why do not the monatomic gases form molecules

Answer 1

this is because gasses like hydrogen if takes or losses electrons then they may only be left with nucleus or the other electron taken will not be able accomodate due to lack of attractional forces.

Answer 2

Explanation:

FOR EXAMPLE:- The molecule of chlorine(Cl2) is more stable than two atoms of chlorine, because molecule of chlorine has less energy than individual atoms of chlorine.

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