Yes you can.
Just go to Mt. Coronet through Oreburgh City. Just make sure before you have plenty of Ultra Balls before you battle them and don't forget to save before you battle each.
http://wiki.answers.com/How_do_you_catch_palkia_or_dialga_in_pokemon_platinum#ixzz1A0p9b47B
After Palkia you get Dialga
If you have pearl you can get dilaga but if you get diamond just follow along with the story and in platinum you can get both dilaga and pilka after to battle the elite 4 and get both the orbs
Palkia is at The Spear Pillar's.
You dont palkia and dialgia get you
how can i get a level100 palkia in pokemon platinum
Dalgia I think
KYOGRE and PALKIA.
You cant but get Pokemon platinum you can get both dialga and palkia
Sorry, you can't. You have to get Pokemon pearl for that. If you buy Pokemon platinum you can obtain dailga, palkia, and giratina!
You cannot catch the legendary palkia on pokemon platinum but however you can use action replay to get it (most likely cheating)
giritina, palkia and dialga
no you idiot