What are called conductors and non-conductors? In which of these are free electrons more abundant: conductors or non-conductors?

(A) $1$. Conductors: Materials that allow electric charge to flow through them easily are called conductors. This is because they contain a large number of free electrons that can move freely throughout the material. Examples include metals like copper,silver,and aluminum.
$2$. Non-conductors (Insulators): Materials that do not allow electric charge to flow through them easily are called non-conductors or insulators. This is because they have very few or no free electrons,and the electrons are tightly bound to their respective atoms. Examples include glass,plastic,rubber,and wood.
$3$. Comparison: Conductors have a significantly higher number of free electrons compared to non-conductors. Therefore,conductors possess more free electrons.