talk to them again
U can't
yes but for more information go serebii.net and look to the left and find gym leader rematch
nope
The fourth gym leader in Pokemon Soul Silver is in Ecruteak City.
You have to receive their number in the Pokegear and call the at specific times
in his gym
claire
the 16th gym leader is:Trainer Blue
Well There is no way to rematch the gym leaders unless if you hack it!
get a Pokemon with a ressisstance
The first Gym Leader who is Falkner, the Violet City Gym Leader, he has a Pidgey and a Pidgeotto.
The Gym and Gym leader is in the bottom left of the city near the Pokemon center.