The planet is Pluto
there are none, if you're not counting Pluto as a planet.
Jupiter's surface is composed of gas rather than solid ground, so there isn't a traditional surface like on Earth. Its outer layer consists mainly of hydrogen and helium, with no solid ground to stand on. The visible clouds on Jupiter are part of its atmosphere and do not represent a solid surface like we have on Earth.
Yes it is every other outer planet is made of gas but some believe that in the center of Jupiter lies a rocky core.
Ours - Earth.
Venus is a solid planet, only the surface is thick with gasses.
Earth is classified as a terrestrial planet, which means it is a rocky planet with a solid surface. It is the third planet from the Sun in our solar system and is the only known planet to support life.
The terms "outer planet" and "inner planet" are only used for planets. Pluto is not a planet, and it orbits beyond the outer planets.
Eris is an OUTER planet. The only inner planets are mercury, venus, earth and mars. An outer planet is not related to the size of the planet but rather the distance from the sun.
All the outer planets probably have solid cores. However, they do not havewhat we call a solid surface.Incidentally, there are only four outer planets altogether.There are only 4 "outer planets". They do not have a solid surface.
Mercury is the only metal in the liquid state.
In order to land on a planet, it has to have a solid outer crust. The only planets in the solar system with a solid outer core are the 4 inner planets (Mercury, Venus, Earth and Mars). The planets outside the Asteroid Belt are composed primarily of gas, which would make any landing impossible on those planets.
Mercury has a rocky surface, it is the closest planet to the sun in the solar system (however not the hottest). There are only 4 gas giants in our solar system, (Jupiter, Saturn, Neptune and Uranus) how ever astronomers have discovered many other gas planets orbiting other stars in the galaxy. Hope this helps you:)