Electron and molecular geometry of a molecule matches when : The central atom has no lone pairs of electrons
Electron geometry vs molecular geometry
The electron geometry of an atom is the various arrangement of the electrons in an atom while the molecular geometry of an atom is the 3D structure of atoms in a given molecule.
For the electron and molecular geometry to be the same the central atom has to possess no lone pairs of electrons.
Hence we can conclude that Electron and molecular geometry of a molecule matches when : The central atom has no lone pairs of electrons.
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