Rock Smash will be super effective against Magnemite but not Voltorb. The reason for this is because Magnemite is an Electric and Steel type pokemon and Fighting type moves like Rock Smash are super effective on Steel. Voltorb is just an Electric type, therefore Rock Smash will not have a type advantage nor disadvantage.
Voltorb is #100 in the national pokedex, and it is an Electric type Pokemon.
Ground type is super effective against electric, fire and rock type Pokémon.
Bug Type and Fighting Type moves are super effective against it.
normal type Pokemon are not super effective against any type.
Ground-types are super effective against electric-type Pokémon.
Actually the Ground is the only super effective type against thunder type pokemon.
ground type Pokemon are super effective against poison type Pokemon.
Electric-type pokemon such as Pikachu, Raichu, Jolteon, Magnemite, Magneton, Electrode, Electabuzz, Zapdos, Voltorb etc. are all able to use ELECTRIC-type moves, which are super effective against: WATER and FLYING.If you were searching for pokemon to beat electric type pokemon such as the one's Lt. Surge uses, go with GROUND pokemon. Electric moves is not working on these type of pokemon, and GROUND-type attacks are super effective against ELECTRIC type pokemon as well. Geodude, Graveler and Golem are example of GROUND pokemon.
The most effective type against Mudkip is the Grass type.
Rock, electric and ice are super effective against flying type pokemon.
Yes, Ghost type is supper-effective against Psychic and other Ghosts.