The only source of Thunderstones in Pokemon Pearl is by going underground and mine them out from the walls. They are very rare if you don't have the National Dex, but they become just uncommon when you get the National Dex.
Pikachu+Thunderstone=Raichu Eevee+Thunderstone=Jolteon These are the only 2 pokemon that evolve with the thunderstone in pokemon emerald
Tynamo will evolve into Elektrik will evolve into Elektross with a thunderstone in Pokemon White.
You can use a thunderstone on pikachu
The Pokemon that evolve using a thunderstone are: Pikachu into Raichu Eevee to get a Jolteon
Thunderstone can be used to evolve a Pikachu into a Raichu.
Thunderstone can be used on Pikachu and Eevee, it evolves Pikachu into a Raichu and Eevee into a Jolteon.
its underground
electric type pokemon
it evolves curtain thunder Pokemon
You can use a thunderstone on: Eevee - Joltron Pikachu-Raichu totallychoco
Pikachu, Evee.
to evolve Pokemon