eevee and pikachu
On a pikachu to evolve to a raichu
The Thunder Stone can be found in the Underground, Sunyshore City, and the Solaceon Ruins. The Thunder Stone is used to evolve some Pokemon like Pikachu.
In Pokémon Diamond and Pearl, the Pokémon that evolve by using a Thunder Stone are Pikachu, which evolves into Raichu, and Eevee, which evolves into Jolteon. Additionally, Electrike does not evolve with a Thunder Stone, but its evolution, Manectric, is achieved by leveling up. Using a Thunder Stone on either Pikachu or Eevee will trigger their respective evolutions.
In sunyshore city. I don't no where in sunyshore.
Well, this may not be helpful, but Fire stones evolve some fire Pokemon... Sun stones also evolve fire Pokemon, (Fire stone, Thunder stone and Water stone also evolve "Eevee", the Pokemon you get after completing sinnoh dex.
the Pokemon that evolve with the help of a thunder stone are : pikachu +thunder stone = raichu, or eevee + thunder stone = jolteon.
thunder Pokemon if it has evolutions
Pikachu and Eevee both need a Thunder Stone to evolve.
No Pokemon can evolve with a hard stone
They don't evolve at any level you have to get a thunder stone and use it on pikachu
Pickachu and eeve can evolve with the thunder stone
You can't, it needs a Thunder Stone.