Answer to Question #218460 in General Chemistry for Joe

Question

Why are some of the planets in our Solar system small and rocky whiles others are large, gaseous and icy? 

Answer 1

The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and then the possible Planet Nine. If you insist on including Pluto, it would come after Neptune on the list.