The chemical family that is generally considered to be not reactive is the noble gases.

Here's why:

* Full outer shell: Noble gases have a complete outer shell of electrons. This means they have a stable electron configuration, which makes them very reluctant to gain, lose, or share electrons.

* Low reactivity: This stable configuration means they don't readily form chemical bonds with other elements.

However, it's worth noting that:

* Some noble gases can react: While they are generally unreactive, heavier noble gases like xenon and radon can form compounds under certain conditions.

* Relatively unreactive, not completely inert: It's more accurate to say that noble gases are relatively unreactive rather than completely inert.

So, while noble gases are the most unreactive family of elements, they are not entirely unreactive.