Yes you can but you have to use a connectre cable to do that.
trade from a different game
Yes it can but you will need to have beaten the game
Yes, Pokemon Red can trade with Red, Blue, Yellow, Gold, Silver and Crystal.
Yes you can trade Pokemon from Pokemon silver to Pokemon blue. The only restrictions on this is that you can not trade any of the new Pokemon that are introduced in the newer game (Pokemon with the number 151 and up can not be traded to Pokemon blue).
No, since Pokémon Yellow is on the Game Boy Color, and Pokémon Fire Red is on the Game Boy Advance, it is not possible to trade between these games. The Game Boy Color is not compatible with the Game Boy Advance.
gold, red, blue, yellow
you can't trade your Pokemon back because the game thinks that you will send one of the newer Pokemon to your heart gold or soul silver
Because it can't
nowhere. you need to trade it from a different game
No you cannot trade from Game Boy Color And Game boy Advance.
You'll need to trade in 9,999 coins in the Game Corner for Porygon.
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.