why does there is so much gap between jupiter and sun?

Answer 1

Before the solar system was formed there was lots of matter moving around rather randomly. Bits kept colliding with other bits. Centrifugal force tended to pull all the bits into elliptical orbits arounfd the sun. Gravity tended to pull them all together. Where the planets ended up in terms of distance from the sun was the pretty random result of these two countervailing forces. Planets both smaller and much larger than Jupiter have been found around other suns (stars) at all sorts of distances from them.

Answer 2

cause it is the furthest from the sun?

I personally think that it is so as it is a gas planet; made out of air.That should be the reason.

Answer 3

Lack of mass, lack of gravity, lack of attraction