yes i believe so
yes it can be traded
first you need the national pokedex by completing sinnoh [you don't need manaphy] the rowan will give you a poke radar next use it on the top of jubilife or on the right this may take a while but it is well worth it
You can't get the PokeRadar in HeartGold. Ralts appears on Route 34 but only when there is a swarm. To check if there is a swarm, after getting the National Dex, check Mary and Oak's channel on the PokeGear Radio. A different Swarm will be announced each day so you just have to wait until it's Ralts.
You can't be on your bike when you use it, and you have to be on the grass. If you go to the first youngster boy, just after the school girl, then stand three steps away from him (to the left), in the grass, and walk down two steps, still in the grass. Then, use the PokeRadar. If a few places of grass shake, go to the one where yellow things appear over it.
Ralts is a psycic type Pokemon, please come to me if you have any more questions about Pokemon types.
Ralts can be found on Routes 203 and 204 with the PokeRadar.
Simply fly to Jubilife go to the top and use the pokeradar
you can find it on routes 203 and 204 but you have to have the pokeradar which you get after you beat the elite four
Ralts can only be obtained on Pokemon Pearl by using the PokeRadar on Routes 203 & 204-South. Ralts only has an 11% appearance rate in these areas so good luck!
Use Pokeradar in the grass right above Jubilife City. Ralts and Kirlia are available through pokeradar so If you get a ralts you can always evolve it if you can't find Kirlia.
Ralts can be found by using the PokeRadar on Route 203.
it is simple. go just past jubilife city and head to oreburgh. you should be able to catch one using a PokeRadar on route 203.
you need a ralts which you can find by floweroma town when you have a pokeradar
Between Jublife City and Ourbourgh City. You need PokeRadar. Grass that shakes violently may well be ralts. Ralts evolves into kirlia at level 20, the Gardevoir at level 30. Kirlia can also evolve into Gallade using a dawn stone.
You evolve the Pokemon; Ralts.
you catch ralts at route 203 and 204 and use a poke radar
Near Hearthome city.