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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)
Wiki User
∙ 11y ago
Wiki User
∙ 14y agono, hydrogen is helium is the second lightest gas
Wiki User
∙ 11y agoWhy is Helium lighter than Nitrogen?
Answer:
Helium is less dense than nitrogen, and just like a piece of wood in water, it floats in the mainly nitrogen atmosphere.
Wiki User
∙ 11y agoNo, Hydrogen (H2) is a lighter gas than Helium (He).
(Compare molar masses: 2 and 4 g/mole respectively)
Wiki User
∙ 10y agoYes, 22.4 L of He weighs only 4 g (at 1 bar pressure and 298 K)
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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 is lighter - helium or hydrogen?
Hydrogen is lighter than Helium.
What is the chemical formulas for helium and nitrogen?
Helium is He Nitrogen is N2
Why is nitrogen heavier than air?
No. The atmosphere is roughly 80% N2, 20% O2, and about 1% of other trace gases. The molecular mass of N2 is about 28, the molecular mass of O2 is about 32. So, no O2 is not lighter than air, it is slightly heavier.
Why do nitrogen oxide particles travel faster than bromine particles?
Because your mom F**K people... >< JK Nitrogen is lighter than bromine...
How does density of helium compare to density of oxygen and nitrogen?
Helium is lighter (less dense) than oxygen & nitrogen.
Which is lighter oxygen helium or nitrogen?
Helium
Is helium lighter than nitrogen?
i dont know but i want to find out too
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)
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.
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.
Is helium lighter or heavier?
Helium is lighter than air
Which is lighter - helium or hydrogen?
Hydrogen is lighter than Helium.
Why does helium rise while carbon dioxide sink?
This is because helium is much lighter than our atmosphere of oxygen, nitrogen and other gases so it floats.
Why does helium float?
Helium molecules are lighter than most air molecules in the atmosphere (mostly nitrogen and oxygen) therefore they are prone to rise while heavier molecules move downward.
Is helium lighter than earth?
yes. helium is lighter than earth or even air.
