Bond Angles

[Wilson 2E]

What causes different molecules with the same VSEPR shape to have slightly different bond angles from each other?

[Anish Patel 4B]

Not sure if this is what you're exactly referring to but the number of lone pairs, which force bonded electron pairs closer to one another, decreases the bond angle

[Alex Tchekanov Dis 2k]

Also, sometimes when adding a different, more electronegative atom, the bond angles can change. For example, CCl4 and CCl3F have the same molecular geometry but slightly different bond angles.

[Charisse Vu 1H]

Sometimes, the angles can differ slightly because of how electronegative the atoms are in a molecule. If an atom is more electronegative, then the bond angle may be reduced.

[MBouwman_4A]

The electronegativity of the atoms can slightly change the bond angles even if two molecules have the same shape.