How is the molecular geometry different form the electron pair geometry
a. the molecular geometry is based only on the arrangement of atoms, not the arrangement of the electrons
b. the electron pair geometry does not consider the space occupied by the nonbonding pairs of electrons
c. the molecular geometry does not rely on a count of the pairs of electrons but a count of bonded atoms.
d. the molecular geometry and electron geometry are always identical for all molecules

a. The molecular geometry is based only on the arrangement of atoms, not the arrangement of the electrons

Explanation:

As we know that molecules geometry is the three dimensional arrangement of molecule.Molecules geometry includes bond angles,bond length ,torsional angle and others parameters which describe the geometry.

When molecules are arrange in proper manner then it is known as molecular geometry and when two lone pairs of electron does not present then it known as electronic geometry.

So the option a is correct.

a. The molecular geometry is based only on the arrangement of atoms, not the arrangement of the electrons

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.