no, you can only get them from using the explorer kit or sunnyshore
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
i believe you go underground and dig it up.
You can buy it in the Celadon department store, or find it in the power plant
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.
yes
The Thunderstone is worthless, as the only Pokemon that can evolve using it is Pikachu, which can only be obtained in Kanto. However, you can get a Thunderstone on Route 25, if you want a Raichu.you could Buy it at Celdon Dept. Store. or you can beat lass Dana on route 38 but make sure you register her so that she should call you saying for you to meet her and she will give you a thunderstone
On FireRed (and LeafGreen, Blue and Yellow) you can BUY thunderstones, firestones, leafstones and waterstones at the department store in Celadon city. It's really easy.
get a Pikachu from Viridan forest and buy a Thunderstone from the shop and use it on the Pikachu
One can be picked up in the Power Plant and you can buy them in the Celadon City Department store.