Rattata will evolve at level 20.
It will evolve at level 20.
it evolves in lvl 28
it will evolve at lv. 20.
Rhydon is not able to evolve in FireRed.
Electabuzz is not able to evolve in FireRed.
areodactl does not evolve:-)
You evolve it at level 20
Golduck does not evolve.
pidgeotto will evolve at level 36
Ghastly will evolve at level 20.
level 26
Crobat doesn't evolve.