How are electrons arranged in molecules of compounds

The electrons in an atom move around the nucleus in specific regions called electron shells. Every electron shell can just contain a specific number of electrons. The manner in which the electrons are arranged in an iota is known as the atom's electronic structure or electronic configuration of the specific atom.

Atoms or molecules are arranged in molecular compounds in set proportions by forming bonds, where outer shell valence electrons from each atom are shared between two same or different atoms of the compound.