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Does argon boil at a higher temperature than helium?
Yes, it does.
Which element has the largest atom Helium or argon?
Argon has a higher mass number which means it has more particles in its nucleus than helium so I would go with argon.
Is helium more reactive than argon?
No. Both helium and argon are chemically inert.
Why does lithium have a higher first ionisation energy than helium?
Helium has a higher ionization energy than in lithium. Further, helium has the highest first ionization energy in all the elements in the periodic table. Lithium has an electronic configuration of [He]2s1. The outer electron is further out and experiences a lower effective nuclear charge. The 2s electron is further out from the nucleus than the 1s electrons in He. Lithium has an atomic radius of 152pm, whereas helium is calculated at 81pm. The effective nuclear charge on the helium electrons is higher than that acting on the 2s electron in Lithium. Estimates vary a little but roughly for helium it is .69 units. For Lithium the effective nuclear charge is 1.3 due to the "shielding" caused by the inner 1s electrons.
Why is argon useful?
Because it is inert but unlike Helium is slightly Heavier than air.
Why does helium has a higher first ionization energy than argon?
The ionisation energy depends on the orbital from which the electron is removed and also the distance of the orbital from the nucleus. In the case of Helium, the electron is removed from 1s orbital whereas in the case of argon it is from 3p orbital. As 1s is closer to the nucleus, the force of attraction experience by these electrons is higher and hence helium will have higher 1st ionisation energy.
Does argon boil at a higher temperature than helium?
Yes, it does.
Which element has the largest atom Helium or argon?
Argon has a higher mass number which means it has more particles in its nucleus than helium so I would go with argon.
Why is Argon used in insulating windows instead of Helium?
Argon is a major component of air and has a much higher temperature of evaporation than Helium - therefore it is much easier to produce and cheaper.
Is helium more reactive than argon?
No. Both helium and argon are chemically inert.
Is helium more abundant than argon?
Argon, Ar. 0.93. Carbon dioxide, CO2. 0.033. Neon, Ne. 0.0018. Helium, He. 0.00052. Methane ... much higher than it is in air. ... Argon is the most abundant and most used of the noble gases.
What is lighter than argon?
helium
How do you separate helium and argon to get helium?
To get helium you can use fractional distillation of liquid air.-or-If you just wanted to separate helium from a MIXTURE of helium and argon you could use diffusion. Since helium is lighter than air while argon is heaver than air. You can capture the helium as it "diffuses" away from argon.
Why does lithium have a higher first ionisation energy than helium?
Helium has a higher ionization energy than in lithium. Further, helium has the highest first ionization energy in all the elements in the periodic table. Lithium has an electronic configuration of [He]2s1. The outer electron is further out and experiences a lower effective nuclear charge. The 2s electron is further out from the nucleus than the 1s electrons in He. Lithium has an atomic radius of 152pm, whereas helium is calculated at 81pm. The effective nuclear charge on the helium electrons is higher than that acting on the 2s electron in Lithium. Estimates vary a little but roughly for helium it is .69 units. For Lithium the effective nuclear charge is 1.3 due to the "shielding" caused by the inner 1s electrons.
Helium and neon cant form compounds with fluorine why?
The first Ionization energy of fluorine is less than that of the helium and neon.
Is the ionization energy of chlorine higher than that of fluorine?
In the periodic table of elements, fluorine and iodine are in the same column, but fluorine is in the second, iodine in the fifth row. That means fluorine has only nine electrons flying around in orbitals while iodine has 53 of them. Ionization is the called a process during which a single electron is abstracted - we're now talking about the 1st ionization energy, which is much higher for fluorine. Well, as it only has nine electrons scattered in the orbitals (but according laws, of course), they do not really influence the repelling - attracting actions between the positive center and the other electrons beside them. For iodine with 53 electrons, they really do interfere with the attraction of other electrons AND as the outmost electrons (which are the ones taken away by ionization) are in those orbitals which are at the biggest distance to the center - for 53 electrons the outmost orbitals is at a much bigger distance... both results in a smaller attraction of the electrions at max distance from the center... so for iodine you need less energy to perform ionization.
Why is argon useful?
Because it is inert but unlike Helium is slightly Heavier than air.
