Electric-type is one of 18 type classifications that is assigned to type-moves and Pokemon who's physiology are closely associated with with high levels of electricity. These types can often be found living in or close to environments with notable high-voltage activity, like power plants or densely placed transmission towers.
Defensively, Electric-typed Pokemon are weak against Ground-type attacks, and are resistant against Flying- along with other Electric-type attacks. Offensively, Electric-typed attacks are effective against Water- and Flying-typed Pokemon; have reduced effectiveness against Grass-, Dragon-, and Electric-types; and have no effect against Ground-typed Pokemon.
This is the signature Pokemon type encountered at the Silvent City Gym.