you must trade Pokemon from (SS,HG,plantium,and more games to fill it in.
No
Shellos
In the National Park.
You can find sunkern in national park
Mew.
West of the National Park.
Steelix, after National Dex Wailord
professor oak gives it to you
Alakazam is number 65 in the National Pokédex.
The Soothe Bell is located in the National park.
You can find one in the National Park.
sorry you have to trade it to Pokemon soul silver