Name the 5 planets beyond the asteroid belt?
The Jovian planets (i.e. the gas planets) are located beyond the asteroid belt. They are: Jupiter, Saturn, Uranus, and Neptune. Pluto is also beyond the asteroid belt, but it has been reclassified as a dwarf planet.
Beyond the asteroid belt, the planets are massive gas giants. The reason for this is that they have retained most of their hydrogen and helium, which the inner planets did not. Had they formed closer to the Sun, they might have become rocky and terrestrial as well. The icy dwarf planets beyond Neptune would likely not survive if they were warmer : most of their mass is frozen gases.
Inner planets (inside the main asteroid belt) are "terrestrial", with a solid rocky outer crust above a rocky "mantle". The outer planets (beyond the asteroid belt) have no crust. Like the Sun, they are composed almost entirely of gas. The reason the gas planets became planets instead of stars was because of their small size.