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Why do inner planets consist mostly of rock and metal but the outer planets mostly of gas?
Wiki User
∙ 13y ago
Most of the inner planets have a volcano core. Really hott and boiling. But the outer planets are gassy so yes the inner planets are mostly rock! and so sorry bout the last person who answer. ; )
Wiki User
∙ 14y ago
Wiki User
∙ 8y agoIt isn't that the outer planets are made out of just gas. They have rocky cores just like the ones inside the inner planets. Gas is not very dense when it is in the form of huge shapeless clouds floating around a sun. Solar winds easily push the particles of gas farther out into space. The solar winds have less effect on the rocky materials closer to the sun. So the gases accumulated farther out, and eventually condensed into the planets we observe today.
Wiki User
∙ 13y agoThe inner planets consist mostly of rock and metal because as the planets are formed, and the sun began to shine, solar wind blew out light, gaseous elements such as hydrogen and helium out of the inner portion of the solar system leaving the inner planets free of the elements. Therefore, the inner planets are composed of rock and metal. However, by the time the wind hit the outer planets it became weaker and the gravitational attraction of the rocky protoplanets was strong enough to hold on to the lighter elements.
Wiki User
∙ 12y agoThe early solar system comprised of a disk of gas which was hot near the newly formed protosun (about 2000 degrees Kelvin) and cooler at further distances.
Rocky substances condensed at the higher (inner) temperatures, while icy substances condense at much lower temperatures further out (about 200 degrees Kelvin) and hydrogen and helium at lowere temperatures still - just above absolute zero. So in the early stages, the inner solar system was rocky, while the planets forming in the outer regions of the solarsystem were made from (and accumulated) ice and gas. Things have pretty much remained this way since.
Wiki User
∙ 14y agoThe inner planets are rocky. It is the outer planets that are gaseous.
Anonymous
gas
Anonymous
hi
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Why are inner planets composed mostly of rock and metal?
The inner planets at made out of rocks because of the sun and the falling rocks.
Inner planets that are composed mainly of rock and metal are called?
Terrestrial
Why are the inner planets called terrestrial planets?
Because the four inner planets are more rocky than gaseous, while the "gas giant" planets may or may not have any kind of a rocky core. And the word "terra" means earth or rock. So, "terrestrial".
Do all planets have a metal core?
stuff you for searching this
How do temperature differences in the protoplanetary disk explain the arrangement of the planets in the solar system?
The protostellar disk is very hot and only rocks and metal can combine together in that heat, so that makes the inner planets. In the outer disk it is very cold, so there are only ice and dust particles able to combine together, there are though rock centers in the outer planets but ice and gas make up the majority: that makes the outer planets.
Why are inner planets composed mostly of rock and metal?
The inner planets at made out of rocks because of the sun and the falling rocks.
How are inner planets characterized?
Inner planets are characterized by their proximity to the sun and their rocky composition. They are also known as terrestrial planets as they have solid surfaces and are made up of mostly rock and metal. Inner planets include Mercury, Venus, Earth, and Mars. They are generally smaller and have shorter orbital periods compared to outer planets.
How are the inner planets different then the outer planets how?
The inner planets have rocky, hard surfaces, are small, and have a more presentage of containing metal objects.
Does the earth's inner core consist of molten metal?
No. It is a solid metallic alloy.
What are some differences between Pluto and solid inner planets?
One major difference is their size. Pluto is significantly smaller than the solid inner planets like Earth, Mars, Venus, and Mercury. Another difference is their composition. Inner planets are primarily composed of rock and metal, while Pluto is composed mostly of ice and rock. Additionally, inner planets have clear and defined orbits around the Sun, while Pluto's orbit is more eccentric and tilted.
Inner planets that are composed mainly of rock and metal are called?
Terrestrial
Why are the smallest planets the densest?
because they are made of mostly metal and rock while the bigger planets are mostly made of gas
Is the inner core made of molten metal?
No. The inner core is composed of solid metal, mostly an iron-nickel alloy.
Earth's inner core is thought to consist of?
This is a highly debated topic, though most geophysicists would say the the inner core is mostly Nickel, Iron, and a tiny bit of Sulfur.
What separates the inner rocky planets from the outer gas planets?
The main factor that separates the inner rocky planets from the outer gas planets is their composition and distance from the Sun. The inner rocky planets, including Mercury, Venus, Earth, and Mars, are closer to the Sun and have solid surfaces made primarily of rock and metal. The outer gas planets, like Jupiter, Saturn, Uranus, and Neptune, are located farther from the Sun and are composed mostly of gases and liquids, with no solid surface.
What layer of the earth is mostly solid metal?
The inner core.
What characteristics do all outer planets share?
The outer planets consist of Jupiter, Saturn, Uranus, and Neptune. These are all gas giants and, to our knowledge, none of them have a solid surface. They all also are significantly larger than Earth.
