You don't give it a thunderstone, you need to train it in the electric kingdom until the link is high enough
pikachu into raichu eevee into jolteon
In pokemon conquest, there is a certain point of the game, a man gives you a water stone, a fire stone, and a thunderstone to evolve Eevee into Vaporeon, Flareon, or Jolteon to the corresponding stone.
Well... I should probably tell you which Pokemon it generally evolves. It evolves Eevee to Jolteon and Pikachu to Raichu.
Pikachu,eevee,and if you have Pokemon black or white you can evolve a Pokemon called electrik to Elecktross using a Thunderstone
If your question is what are the different evolution stages of eevee the answer is: Vaporeon-water stone Flareon-fire stone Jolteon-thunder stone Espeon-friendship at day Umbreon-friendship at night Leafeon-leaf stone Glaceon-ice stone Hope I helped ^_^
the Pokemon that evolve with the help of a thunder stone are : pikachu +thunder stone = raichu, or eevee + thunder stone = jolteon.
eevee and pikachu.
To use any of the stones in Pokemon Conquest, you have to equip the pokemon compatible with the stone, go into battle (preferably a training battle and not one to conquer a castle, but that's just me), if you win, you should get a scene of the pokemon's owner says something along the lines of "Something is happening to [insert pokemon here]," then the little evolution scene will happen. The only ones I've done are Thunder Stone for Eevee to Jolteon, Water Stone for second Eevee to Vaporeon, and Moon Stone for Jigglypuff to Wigglytuff.
Pikachu and Eevee both need a Thunder Stone to evolve.
Use a thunder stone on an eevee
you can get the leaf stone, fire stone, and thunder stone at the big department store in celadon city. you get eevee in the back on the Pokemon mansion.
well you can evolve eevee with a thunder stone,a water stone,a fire stone hope i helped
use a thunder stone on eevee
eevee and pikachu
eevee and pikachu.
pikachu into raichu eevee into jolteon
Eevee evolves using Evolution Stones, Fire Stone to Flareon, Water Stone to Vaporeon and Thunder Stone to Jolteon.