Final answer:
Electrons travel along the conductive path in an electrical circuit, through conductors with free electrons or ions, and not through insulators where these particles are bound.
Step-by-step explanation:
In an electrical circuit, subatomic particles called electrons travel along the conductive path, which is another way to say they travel through conductors and not through insulators. Conductors, like metals and salty water, contain free electrons or free ions that can move relatively freely through the material, facilitating electrical conductivity. These substances constitute the conductive paths in electrical circuits. Materials that do not permit this free flow of electrons, such as glass or dry table salt, are considered insulators because their internal structure binds the electrons tightly preventing them from moving freely.