They are gases
Helium, hydrogen, and air are gases.
The correct term, or state is gas, just like helium
air is the matter of gases because they are the same thing
No. Air is a mixture mainly of nitrogen, oxygen and argon; the only four states of matter are solid, liquid, gas and plasma.
Nitrogen and Helium
Air is about 79% (volume) Nitrogen (N2). It is a gas at atmospheric conditions.
air has oxygen in it but also other gases, e.g. helium nitrogen.
The most important gases in air are oxygen, nitrogen, argon helium krypton
Water vapor is a gas so it is in the air. Nitrogen and nitrogen are in the air too, but there is more nitrogen than anything in the air. I believe it rises because it is lighter, like a balloon filled with helium.
Carbon, Helium, Oxygen ========================= Mine are Hydrogen (in water), Oxygen (in water and air), and Nitrogen (in air). Helium is not abundant on Earth at all.
The molecular mass of helium is 4. The molecular mass of nitrogen, the most common component of air, is 28. Since all gases take up about the same amount of space per mole at a given temperature and pressure, helium is about 7 times less dense than nitrogen, and oxygen, the second most common constituent of dry air, is even more dense than nitrogen.
there are many other gases like nitrogen, helium and water vapour in the air