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Mainly hydrogen and helium. The reason for this is simply that these are the most common elements in the Universe.

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How do the planets in the two groups different?

The first 4 planets, Mercury, Venus, Earth, and Mars, are called rock planets, and the last 4, Jupiter, Saturn, Uranus, and Neptune, are the gas planets. The main differences between these two groups are that the rock planets are made of rock, the gas planets are made of gas, the rock planets are typically smaller than the gas planets, and the gas planets have rings.


What elements or compounds are made from two molecules?

No elements can be made from molecules, because molecules are made from elements instead. If the question is really, "What elements normally occur in nature as diatomic molecules?", the answer is hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine.


Do rock planets or gas planets have more moons?

The gas planets have more moons. Of all the gas planets non has fewer than 14 moons. Of the rocky planets, none has more than two. Mercury and Venus have none at all.


What are the two different types of planets in your solar system called?

In our solar system, there are two types of planets: rocky terrestrial planets (Mercury, Venus, Earth, Mars) and gas giant planets (Jupiter, Saturn, Uranus, Neptune). Terrestrial planets are small, dense, and primarily composed of rock and metal, while gas giants are large and predominantly made up of hydrogen and helium.


Is Jupiter made of gas or rock?

Jupiter is one of two planets in our solar system that consist solely of gas (the Gas Giants.) Jupiter is one, Saturn the other. (Notice both of them have rings.)

Related Questions

What are the two most prevalent elements on the Jovian or gas planets?

The two most prevalent elements on Jovian or gas planets like Jupiter and Saturn are hydrogen and helium. These elements make up the bulk of their composition, with hydrogen being the most abundant element in their atmospheres.


What are the two major differences in the composition of the inner and outer planets?

the inner planets are rocky and warm and the outer planets are made out of gas and is cold


What are two major differences in the composition of the inner and outer planets?

the inner planets are rocky and warm and the outer planets are made out of gas and is cold


How do the planets in the two groups different?

The first 4 planets, Mercury, Venus, Earth, and Mars, are called rock planets, and the last 4, Jupiter, Saturn, Uranus, and Neptune, are the gas planets. The main differences between these two groups are that the rock planets are made of rock, the gas planets are made of gas, the rock planets are typically smaller than the gas planets, and the gas planets have rings.


What are two types of planets?

Two types of planets are terrestrial planets, which are small, rocky planets like Earth, and gas giant planets, which are large planets primarily composed of hydrogen and helium, such as Jupiter and Saturn.


What elements or compounds are made from two molecules?

No elements can be made from molecules, because molecules are made from elements instead. If the question is really, "What elements normally occur in nature as diatomic molecules?", the answer is hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine.


Why are the outer planets call the gas giants?

The outer planets (with the exception of the dwarf planet - Pluto) are called "gas giants" for two reasons - they are GIANT (in size/mass/gravity etc.) compared to Earth and the inner solar system "rocky" or "terrestrial" planets and are composed mainly of a gaseous atmosphere (with, its hypothesized, a small rocky core at the center).


What are two types of planets an be found in our solar system?

Two types of planets in our solar system are terrestrial planets, such as Earth and Mars, which are rocky and have solid surfaces, and gas giants, such as Jupiter and Saturn, which are predominantly made of gases like hydrogen and helium.


Why are there two main types of planets?

There are two main types of planets because the two categories separate the planets into more specific groups. 1. Terrestrial planets have a rocky surface and are inside of the asteroid belt that separates the Terrestrial planets from the Gas Giants The Terrestrial planets are: (in order of distance to the sun (close to far) Mercury, Venus, Earth, and Mars. 2. Gas Giants are mostly made up of gasses and are very large in size Gas Giants are: (in order of distance to the sun (close to far) Jupiter, Saturn, Uranus, and Neptune.


What is the difference between terrestial planets and gas planets?

The terrestrial planets are small in size and mass, they are rocky, solid and dense, all four terrestrial planets have 3 moons between them. They are warm and close to the sun. Terrestrial planets USUALLY have thin atmosphere. The Gas Giants are huge in size, have rings made from dust, debris, ice, rock. They very cold (not close to the sun at all) and light (made from gas.) They have several moons between them (167, I think) and lastly Gas Giants usually have thick and deep atmosphere.


What are the two planet groups?

There are the inner, terrestrial planets, also know as the rocky planets. Earth is one of these. Then there are the outer planets, also know as the gas planets or gas giants.


Is Jupiter made out of rock or gas?

Jupiter is one of two planets in our solar system that consist solely of gas (the Gas Giants.) Jupiter is one, Saturn the other. (Notice both of them have rings.)