Water.
Hydrogen, Helium, and a scattering of other elements.
Not at its surface, no. Neptune is mainly made from hydrogen and helium gas, though deep in it's core there will be large amounts of material which originally came from rocky asteroids and icy comets. So the dirt from these will be there, but the extreme pressures at these depths will have crushed any solid material into a super dense mixture.
Hydrogen and helium are formed in Sun.
The result of this separation will be pure hydrogen and pure helium.
About 96% hydrogen and 2% helium.
Methane, hydrogen, helium, hydrocarbons, nitrogen, e.t.c
Hydrogen, Helium, and a scattering of other elements.
Hydrogen and helium
You mean convection zone. Hydrogen and Helium.
About 75% hydrogen and 25% helium, with some traces of heavier elements.
Uranus has more hydrogen and less helium than Saturn, but both atmospheres are similar.Saturn's atmosphere: Hydrogen 75%, Helium 25%, plus tiny amounts of other gases.Uranus' atmosphere: Hydrogen 83%, Helium 15%, Methane 2% plus tiny amounts of other gases (acetylene and hydrocarbons).That uranus atmosphere is smaller and saturn's is biger
Not at its surface, no. Neptune is mainly made from hydrogen and helium gas, though deep in it's core there will be large amounts of material which originally came from rocky asteroids and icy comets. So the dirt from these will be there, but the extreme pressures at these depths will have crushed any solid material into a super dense mixture.
The chemical symbol for helium is "He."
Correct. Hydrogen is not made in stars. Hydrogen is the simplest material, and we believe that the vast majority of the matter "created" after the Big Bang was hydrogen, with a little helium and tiny traces of lithium.Hydrogen is CONSUMED in stars, as the fuel for the thermonuclear fusion reaction that converts hydrogen into helium.
Hydrogen is H2. Helium is He.
Hydrogen and helium are the two most abundant elements in the universe.
Hydrogen is lighter than Helium.