answersLogoWhite

0

The giant planets of the solar system, are composed primarily of hydrogen and helium, the lightest elements. They formed beyond what is known as the frost line. Within the frost line the sun's radiation was intense enough to strip away most of the lighter elements, leaving behind smaller planets made mostly of rock and metal. Beyond the frost line the planets were able to hold on to this material and grew massive as a result.

User Avatar

Wiki User

10y ago

What else can I help you with?