You would have to breed Electabuzz, which you can find on Route 222.
look on serebii.net
buy the Pokemon platinum book
The 151st Pokemon is Mew and is unobtainable in Pokemon Platinum.
no you can't find a torchic egg in Pokemon platinum
none have elekid you will need to migrate
try your best to find spirtomb in Pokemon platinum
You cannot find zekrom in pokemon platinum
There is not a route 233 on Pokemon platinum.
there is no such Pokemon
you find them in the cave
breed an electabuzz if you want an elekid in Pokemon platinum
You can't "find" him. You have to trade the egg from Pokemon ranger over to platinum, where you can hatch it.