Yes they are all elements
Hydrogen and helium are the two most abundant elements in the universe.
Helium does not form chemical bonds with other elements, including hydrogen. Hydrogen, however, can bond with other elements like oxygen, carbon, and nitrogen to form various compounds.
Carbon, Hydrogen, Nitrogen, and Oxygen are the four most common elements.
Iridium Einsteinium
All of them. There are no elements lighter than hydrogen. It has only two atomic particles, and you cannot have an element with less.
They are not, the most common elements are Hydrogen and Helium.
Hydrogen (H) Helium (He) Oxygen (O)
At room temperature: Chlorine: gas Helium: gas Hydrogen: gas Oxygen: gas
Hydrogen and helium are the two most abundant elements in the universe.
Oxygen is an element as are Hydrogen and Helium. It is not composed of other elements. Minerals are combinations of elements.
Oxygen
Hydrogen, helium, oxygen, and carbon are the most abundant elements in the universe.
Helium does not form chemical bonds with other elements, including hydrogen. Hydrogen, however, can bond with other elements like oxygen, carbon, and nitrogen to form various compounds.
Carbon, Hydrogen, Nitrogen, and Oxygen are the four most common elements.
Hydrogen is the most common element in the universe as a whole; about 75% of the universe by mass is hydrogen (since hydrogen is also the lightest element, that means that the percentage by number of atoms is even higher) . Helium is second; oxygen is a fairly distant third.
The predominant element in the Sun is hydrogen, and then helium: by mass, it is 70% hydrogen, 28% helium, 1.5% carbon, nitrogen and oxygen, and 0.5% all other elements.
We cannot. Stars can change hydrogen into helium and then helium into oxygen via nuclear fusion, be humans cannot generate and contain the forces necessary to fuse these elements.