No.
Pokemon #146 is Uxie, and can be found in the Acuity Cavern in the middle of Lake Acuity. In Platinum, I believe you can have another chance to catch it if you don't catch it the first time.
find an elekid and you have a 50% chance it will be holding an electirizer.
Catch a female wurmple Or if you have Pokemon ruby (gameboy game) then just plug that in to your DS when you play Pokemon platinum. Go to route 205 Eterna Forest and cascoon will have an increased chance of appearing.
In Pokemon Platinum, you can't catch an Arcanine, but you can catch a Growlithe and evolve it into an Arcanine. To catch a Growlithe, you have you use dual-slot mode with FireRed in the second slot and then you should have an 8% chance of catching a Growlithe on Routes 201 and 202 in Platinum.
Pokemon #93 in the Platinum Pokedex is Sudowoodo, which you can catch on Route 221. It has a 25% chance of appearing.
Ice Beam has a 10% chance of freezing a Pokemon.
swarm:route 206(40% chance)
anywhere with a chance of 1 in 2,348
there is a 5% chance of finding them in the trophy garden
the chance of getting a shiny Pokemon is 1/8496.
simply it is rare, 1% chance of finding
You have to encounter them. but it's less than a 1% chance to find one.
no
you cant, but there is only 20% chance to catch him.
No.
It is most comman in Platinum and it can be caught in Victory Road after the National Pokedex. It can be found by Surfing across the water in the Backroom 1 (Basement 1). In Pokemon Diamond and Pearl there is a 10% chance but in Platinum it is said there is a 20% chance but this has not been proven, so there may still only be a 10% chance.