a thunder stone can evolve a pikachu. pikachu won't evolve on it's own.
You use a Thunder Stone on it, and it will evolve into a Raichu. However, there is a 13% chance that it will refuse to evolve.
pikachu into raichu eevee into jolteon
Pokemon can evolve at a huge variety of levels; from 7 to 50. Some Pokemon don't need to level up to evolve. They can evolve by stones; such as: Fire Stone, Leaf Stone, Water Stone, Thunder Stone, and Moon Stone. You can evolve them by trading them with a friend, which these are the Pokemon can be traded to evolve: Graveler, Gengar, Machoke, and Kadabra. (These Pokemon are available in Blue and Red. The further Pokemon do not exist.)
1:some Pokemon's evolve with rocks like pikacho needs an thunder stone first attach the stone to the Pokemon second after attaching the stone click on the Pokemon u attached the stone it will say 'yes it will evolve to the picture of the evolved form'click on it and it will evolve 2:some Pokemon will evolve in a serton lvl just do number 1 with out the stone
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.
pikachu
Pickachu and eeve can evolve with the thunder stone
You can't, it needs a Thunder Stone.
PIKACHU
Evolve it using an Thunder Stone.
eevee and pikachu.
with a thunder stone
thunder stone
If you catch a Tynamo, it will evolve into Eeletrik at level 39, then you evolve Eelectrik into Eelektross with a Thunder stone.