Hydrogen is 71% of the sun.
Nitrogen
The sun is primarily composed of hydrogen and helium, which together make up more than 90 percent of its mass. Hydrogen accounts for about 74 percent, while helium makes up approximately 24 percent. These two gases are crucial for the nuclear fusion processes that power the sun.
I believe that all of them do.
Argon and trace gases like neon, helium, and methane make up less than 1 percent of Earth's atmosphere.
A compound contains more than one kind of element. Compounds are made up of two or more different elements that are chemically bonded together. This differs from elements, which are pure substances made up of only one type of atom.
helium
Nitrogen
It is nitrogen and it makes more than 78% of the air.
This element is calcium. It is the fifth most abundant element in the Earth's crust and makes up more than 3 percent of the crust. It reacts with water and belongs to the 2nd group of the periodic table.
Hydrogen makes up more than 60 percent of a typical star's composition. Through nuclear fusion, hydrogen is converted into helium, releasing energy in the process.
water
china
Uranium is a chemical element, not a compound.
Bacteria.
Protein
Protein
water