all of them
you have to trade from red blue or yellow. zapdos is not catchable in Pokemon silver.
They are not in Pokemon Gold and Silver. However, they are catchable in the remakes of Gold and Silver, HeartGold and SoulSilver.
look on bulbapedia numbers 152-251 national dex
Use the master ball you get from profe elm
you don't need the master ball for any Pokemon but i would save it for ho-oh lv 70
Yes. But only a few such as Starly, Budew, Bidoof eg...
The Pokeathlon isn't in Pokemon Silver version.
If you mean pokemon silver for gbc an pokemon black for ds then you can't sorry
you cant get two master ball's in silver
There are 100 new pokemon in pokemon silver that weren't in blue and red. Although,the original pokemon are still in silver, bringing the total amount of available pokemon in your pokedex up to 251. So, you can catch 251 pokemon in the silver version for gameboy.
Red Gyarados should be catchable in heartgold/soulsilver like in the original gold/silver series. Itt should be caught in the lake most northern of the johto region. hope this helps you. =)
You can't always get master balls in any version of Pokemon, or so I've heard. You usually get a master ball once, unless you either clone it or look for it all around the Pokemon world. My advice to whoever wrote this question, don't use the master ball until the time is just right! Okayy... now look over here and not at that useless JUNK! To get masterballs in sapphire and ruby is the " Lucky Number thing " also in silver gold and crystal version you can clone the Pokemon. To clone them look at like " How to clone Pokemon in silver version " or something... anyway and in the Diamond and pearl you can clone too. idk how to obtain masterballs in red blue green and yellow version and idk about platinum too. but this... is all i no.