U can , only if u have a gbc not gba
no.
yes you can
You can't trade Pokemon between GameBoy Color and GameBoy Advance. Sorry.
Can u trade pokemon between gold version and leaf green
Without a GS/AR? Trade.
Luckily for you bilinguals (I am too :]) yes
No you cannot. Yellow version (Special Pikachu Edition) is a Gameboy/Gameboy Color game, whereas Emerald is for Gameboy Advance. The Gameboy Advance cannot connect to previous Gameboy systems.
You can't (**Cry**)
If you can trade Pokemon from crystal version to gold version my guess is yes
You cannot trade Pokemon between Gameboy Advances and Gameboy Colors. It is impossible by regular means.
Yes you can trade leafgreen version Pokemon to another leafgreen version.
No, because gold was made for gameboy color, and emerald was made for gameboy advance