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How does the size of a nitrogen molecule compare to that of a helium molecule?
Wiki User
∙ 11y ago
Molecular size a bit tricky. As a quick comparison, we can use the covalent radius defined as 1/2 the distance between to identical covalently bonding nuclei. This is measured in picometers (1 pm= 1x 10-12 m). Nitrogen's covalent radius is 75pm so the length of a nitrogen (N2) molecule ought to be 4 X 75pm or 300 pm. A molecule of oxygen (O2) ought to be just a shade smaller 4 X 73pm or 292pm. So an oxygen molecule is a little less than 3% smaller than a nitrogen molecule.
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This isn't the best response, as it does not take into account the different bonding which is present in the two molecules.
Although one could use covalent radius, it is more appropriate to use a covalent radius determined from similar bonding.
For nitrogen, the covalent radius for a triple bond is 54 pm.
For oxygen, the covalent radius for a double bond is 57 pm.
(Numbers from Wikipedia...)
From these numbers alone, one would expect diatomic nitrogen (with its triple bond) to be smaller than diatomic oxygen (with its double bond).
These numbers are similar to bond lengths for diatomic nitrogen and diatomic oxygen of 110 pm (~2 x 54 pm) and 121 pm (~2 x 57 pm), respectively.
Wiki User
∙ 12y ago
A nitrogen molecule (N2) is larger in size compared to a helium molecule (He) because nitrogen has a larger Atomic Mass and contains two nitrogen atoms bonded together. Helium, on the other hand, exists as single atoms.
Wiki User
∙ 11y agoCovalent radius of nitrogen = 75 picometer
Covalent radius of helium = 32 picometer
So the radius of nitrogen is double than that of helium
Wiki User
∙ 14y agoThe bond length of a C-O bond in CO2 is 116.3 pm and the bond length of N-N is 110 pm. But there are two CO bonds in CO2 so it is larger.
Wiki User
∙ 10y agoNitrogen is N2 (2 atoms) for instance Freon-13 is CClF3 and has a total of 5 atoms (1 carbon, 1 chlorine and 3 fluorine atoms). Nitrogen is smaller.
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Usually in a gas, the distance between molecules is larger.
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How much a helium balloon carries depends on the size of the balloon.
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Yes, nitrogen molecules are smaller than butane molecules. Nitrogen molecules consist of two nitrogen atoms, while butane molecules consist of four carbon and ten hydrogen atoms. Carbon atoms are slightly smaller than nitrogen atoms, but four of them are definitely larger than two nitrogen atoms, and of course, there are also the ten hydrogen atoms, and although hydrogen atoms are the smallest type of atom, if you have ten of them it does contribute to the size of the molecule. Further to this, the distance between bonds will be smaller in N2 as this is a triple bond because of 3 shared electrons each, whereas it is single bonds between the carbons, elongating the bonds between carbons
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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.
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What nitrogen's atomic size?
Molecular size a bit tricky. As a quick comparison, we can use the covalent radius defined as 1/2 the distance between to identical covalently bonding nuclei. This is measured in picometers (1 pm= 1x 10-12 m). Nitrogen's covalent radius is 75pm so the length of a nitrogen (N2) molecule ought to be 4 X 75pm or 300 pm. A molecule of oxygen (O2) ought to be just a shade smaller 4 X 73pm or 292pm. So an oxygen molecule is a little less than 3% smaller than a nitrogen molecule.
How does the distance between the particles in atmospheric air compare to the size of the particles themselves?
Usually in a gas, the distance between molecules is larger.
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The covalent radius of helium is 32 pico meter.
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The size of gas molecules is determined by the number of atoms and their arrangement in the molecule. Oxygen gas (O2) consists of two oxygen atoms, while nitrogen gas (N2) consists of two nitrogen atoms. Oxygen atoms are smaller in size compared to nitrogen atoms, leading to smaller oxygen gas molecules.
