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Your question is wrong because hydrogen is the lightest gas
but other than that its the lightest nobel gas, and that's just cause its atoms don't have much to them, and neither dose its molecules.
With an Atomic Mass of 2, its the second lightest substance there is, and therefore attracted by gravity the second least of anything, so its gonna be ontop of all other matter (exept hydrogen which has the atomic mass of one)
What else can I help you with?
Which is lighter - helium or hydrogen?
Helium is lighter than hydrogen. Helium has an atomic number of 2, which means it has two protons and two neutrons in its nucleus, making it lighter than hydrogen, which has only one proton in its nucleus.
What happens when water vapor is lighter than nitrogen or oxygen?
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.
Which one has fewer protons Nitrogen or Helium?
The periodic table is a good reference - check out the atomic number ! Helium - 2 protons, Nitrogen - 7 protons
What is the chemical formulas for helium and nitrogen?
The chemical formula for helium is He, while the chemical formula for nitrogen is Nā.
What is ligther helium or oxygen?
Helium---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
Is helium lighter than nitrogen?
Yes, helium is lighter than nitrogen. Helium is the second lightest element, while nitrogen is a bit heavier due to its molecular structure. In fact, helium is the lightest noble gas and is commonly used in balloons for this reason.
How does density of helium compare to density of oxygen and nitrogen?
Helium is lighter (less dense) than oxygen & nitrogen.
What would happen if you poured liquid helium into liquid nitrogen?
If you pour liquid helium into liquid nitrogen, the helium will not mix with the nitrogen and will instead form separate layers. Helium is lighter than nitrogen and has a lower boiling point, so the helium will tend to float on top of the nitrogen.
Is there anything lighter than oxygen?
In fact there are seven elements lighter than oxygen: hydrogen, helium, lithium, beryllium, boron, carbon and nitrogen.
Is a tank of helium lighter than a empty tank?
No, helium has weight, but it rises when its in an expandable container such as a balloon because it is lighter than the nitrogen rich atmosphere but inside of a rigid container the helium can only add weight. (see the mythbuster's episode about the helium football)
Does helium have smaller particles than nitrogen or oxygen?
Helium has smaller particles than nitrogen or oxygen. Helium atoms are smaller in size, as they have fewer protons and neutrons in their nucleus compared to nitrogen or oxygen atoms. This smaller size allows helium atoms to move more freely and escape into the atmosphere, which is why helium is a lighter gas.
Is air lighter than heluim?
The composition of Earth's atmosphere is mostly nitrogen, carbon dioxide, and oxygen. All of these elements are denser than helium, and therefore it tends to rise.
Which is lighter oxygen helium or nitrogen?
Helium is the lightest of the three gases, with an atomic mass of 4 compared to 16 for oxygen and 14 for nitrogen.
Is helium lighter or heavier?
Helium is lighter than air
Why is the average speed of helium particles in the room more than nitrogen molecules?
The average speed of helium particles in a room is greater than that of nitrogen molecules primarily due to their lighter molecular mass. According to the kinetic molecular theory, at a given temperature, lighter gases move faster than heavier gases because they have higher average kinetic energy. Helium, with a molecular weight of about 4 g/mol, is significantly lighter than nitrogen, which has a molecular weight of about 28 g/mol. As a result, helium particles will have a higher average speed compared to nitrogen molecules under the same conditions.
Why does the helium balloon rise while the ordinary air failed?
Helium is a very light compound. Air consists out of 21 % oxygen gas, 78% nitrogen gas and 1% other gases (such as argon and other noble gases) in general. As we know, wood floats on water because it is lighter per volume. For helium, the same rule counts. Helium is lighter than oxygen and nitrogen.
Is helium lighter than earth?
yes. helium is lighter than earth or even air.
