Define electron pair and molecular geometry. Identify when these terms are the same and when they are different, providing an example for each scenario.
A) Electron pair: A pair of electrons involved in bonding or non-bonding interactions. Molecular geometry: Arrangement of atoms in a molecule. They are the same when there are no lone pairs on the central atom. Example: CO2.
B) Electron pair: A pair of electrons involved in bonding or non-bonding interactions. Molecular geometry: Arrangement of atoms in a molecule. They are different when there are lone pairs on the central atom. Example: H2O.
C) Electron pair: A pair of atoms involved in bonding interactions. Molecular geometry: Arrangement of atoms in a molecule. They are the same when all atoms are bonded linearly. Example: BeCl2.
D) Electron pair: A pair of atoms involved in bonding interactions. Molecular geometry: Arrangement of atoms in a molecule. They are different when there are lone pairs present in the molecule. Example: NH3.