How do the 18 and 16 electron rules affect the reactivity and stability of transition metal complexes?

Complexes following the 18 electron rule are generally less stable but more reactive.

Complexes that adhere to the 18 electron rule are often more stable and less reactive, while those that follow the 16 electron rule are more reactive.

Complexes do not show any difference in reactivity or stability regardless of electron count.

Complexes following the 16 electron rule are typically less stable and less reactive.