i believe you go underground and dig it up.
NO you can not buy one, but you can get one in a trade or something
You can buy it at the celadon pokemart mall.
Win the pokeathlon afew time then use the points to buy a thunderstone from the prize corner
Pikachu+Thunderstone=Raichu Eevee+Thunderstone=Jolteon These are the only 2 pokemon that evolve with the thunderstone in pokemon emerald
no, you can only get them from using the explorer kit or sunnyshore
You can buy it in the Celadon department store, or find it in the power plant
it tells you how
you have to trade from pearl
Tynamo will evolve into Elektrik will evolve into Elektross with a thunderstone in Pokemon White.
You can buy one at the Celadon Department Store, on the fourth floor.
Buy it in a dungeon's Kecleon shop. Be prepared with 1000 bucks.
you have to get it at an event or get an action replay