They are massive enough to have a strong gravitional field which stops the gases escaping.
Yes, outer planets like Jupiter and Saturn likely lost light gases from their atmospheres due to their gravity not being strong enough to retain these gases. Additionally, the strong solar wind and radiation in the outer solar system may have contributed to the loss of these gases over time.
The inner planets are all rocky planets. The outer planets are completely made up of gases. The inner planets are much smaller than the outer planets.
YES
No. The outer planets do not have solid surfaces. Those planets are made of gases held together by gravity.
Outer planets like Jupiter and Saturn have stronger gravity due to their larger masses, which helps them retain light gases in their atmospheres. Additionally, the colder temperatures in the outer solar system reduce the speed of gas particles, making it more difficult for them to escape the planets' gravitational pull. These factors combined allow the outer planets to hold on to their light gases.
the inner planets made up of rocks while the outer planets are made up of gases and liquids.
The outer plants are made out of gases mostly.
The outer planets, such as Jupiter and Saturn, have strong gravitational fields that are capable of retaining lighter gases like hydrogen and helium. Their significant mass allows them to hold onto these gases despite their higher thermal velocities. Additionally, the colder temperatures in the outer solar system help reduce the kinetic energy of gas molecules, making it less likely for them to escape into space. Consequently, these planets have retained their thick atmospheres composed primarily of lighter gases.
A basic, simplified answer is: The inner planets are mainly rock with iron cores. The outer planets are mostly gas, or liquefied gases.
They are all made of gas
Helium and hydrogen =|
Gases