A bonding question
if the peripheral atoms are all identical around a central atom without any lone pairs, would the bond angle remain same, regardless of the electronegativity of the peripheral atoms for a given steric number? For example, we know that SiH4 and SiF4 have the same tetrahedral geometry and 109.5° bond angle even though H and F are vastly different in electronegativity. Does this hold for all steric numbers though?