Oxygen can be toxic in hydro concentrations, but it is essential in lower concentrations. Neither helium nor hydrogen are toxic, but they can displace oxygen simply because they take up space and so can cause asphyxiation. Hydrogen is dangerous because it is highly flammable.
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Hydrogen, helium and oxygen are gases. Gravity is a physical property of any substance.
Argon, Neon, Chlorine, Methane, Oxygen, Hydrogen. There are plenty of others.
The most abundant elements in the universe, in order from most to least abundant, are Hydrogen, Helium, Oxygen, Carbon, and Nitrogen. Therefore, the correct list would start with Hydrogen, followed by Helium (not listed), then Oxygen, Carbon, and finally Nitrogen. The first option you provided, "Hydrogen Oxygen Nitrogen Carbon," is almost correct but is missing Helium and has an incorrect order for Nitrogen and Carbon.
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.
Hydrogen an react with oxygen to form water and not helium
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
hydrogen helium oxygen nitrogen phosphorus aluminium nickel calcium barium magnesium oxygen sulphur helium neon tin mercury
Helium, oxygen, and hydrogen.
Oxygen, Hydrogen and Helium.
Hydrogen, Helium, Oxygen.
hydrogen, helium, oxygen.
hydrogen is the lightest element
89% molecular hydrogen,and 11% helium carbon monoxide
At room temperature: Chlorine: gas Helium: gas Hydrogen: gas Oxygen: gas
Hydrogen gas itself is not poisonous, as it is a naturally occurring element and is non-toxic. However, hydrogen can be dangerous if it is in high concentrations in the air because it is highly flammable and can displace oxygen, leading to a potential risk of asphyxiation.
No. It is composed mainly of hydrogen and helium. It is about 1% oxygen.