Well theres two ways: 1. Go to the city where brocks gym is located and head south till you reach the first patch of grassyou see then search there eventually you will find a pikachu and that one will allow you to use a thunderstone on it. 2. Buy a GameShark and cheat.
The only way to acquire a Raichu in Pokémon Yellow is from trading over another Pikachu and evolving that or by trading over the Raichu.
Mew, Raichu.
He has a single Lv. 28 Raichu.
the only one i no is pikachu evolves into raichu with a thunderstone
It's name is Pikachu, and it's evolved form is Raichu.
Currently, raichu cannot evolve into other pokemon.
1
Machoke, Haunter, Graveler, Kadabra.
You can't. The only way to get Raichu in Pokemon yellow is to trade your Pikachu to another game, give it a thunderstone, and then trade it back. I don't suggest this however, as once it is evolved into Raichu it will no longer follow you around in-game. Your best bet - if you want to take the time - is to catch a new pikachu (not available in yellow) on another game and use the thunderstone there and then trade it.
The third gym leader is Lt. Surge, an electric Pokemon trainer. In the yellow version his only Pokemon is Raichu. Raichu can be easily defeated by a ground type Pokemon. Conveniently, Diglett's Cave is located right next to the town. In here you can find wild Diglett's and maybe wild Dugtrio's, the evolved form of Diglett. These Pokemon can easily defeat Lt. Surge with the Dig attack.
Gengar can only be obtained by trading a Haunter.
No, you cannot give the Pikachu that you started with a Thunderstone and evolve it into Raichu since the game blocks that Pikachu's evolution into Raichu while it is in Pokémon Yellow however you can trade for other Pikachu and they will evolve through the use of a Thunderstone.