Which noble gas ionises most easily? Why?

Answer 1

Radon (Rn) is the most easily ionized of all the noble gases. Ionization occurs when the outermost and least tightly bound electron is removed from the atom forming a cation. Radon is most easily ionized since the outer valence electrons are held the least tightly to the nucleus. As the valence orbital increases in size (ie. 3p<4p<5p<6p), the valence electrons are further from the nucleas and are held less tightly. The valence electron orbital and their ionization energies are as follows.

helium He 1s orbital 2372.3 kJ/mol
neon Ne 2p orbital 2080.6 kJ/mol
argon Ar 3p orbital 1520.5 kJ/mol
krypton Kr 4p orbital 1360.7 kJ/mol
xenon Xe 5p orbital 1170.4 kJ/mol
radon Rn 6p orbital 1047.8 kJ/mol

Answer 2

You can actually form weakly ionized noble gases, contrary to what the other answerers have said. The ionization energies are high, but ionization can be accomplished by fast proton impact. Anyways, like all other groups in the periodic table, the first member of the group (He) will be the hardest to ionize and the last member of the group (Rn) will be the easiest. The reason is that as you move down a group, there are more and more electrons blocking the valence electrons from seeing the nuclues efficiently, and the electrons are also held further from the nucleus.. The valence electrons are, therefore, held loosly relative the those of the group members before it. Since the aren't as tightly held (hight in energy), they are more easy to ionize. Hope this helps.

Answer 3

They don't ionise easily, but it can be done. The heavier the atom, the more easily it could be ionized because the electrons in the outer shell are farther from the nucleus.

Xenon Hexaflouride has been made. So yes, you can ionize and create compounds of noble gases. It just isn't easy because they are happy in their natural neutral state.

Answer 4

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RE:
Which noble gas ionises most easily? Why?

Answer 5

Ionise

Answer 6

Well....like stated above, the heavier the gas the easier to ionize. So, would the answer be: element #118 Ununoctium (Uuo)?

Followed by Radon and Xenon (in decreasing order).

That's the reason why Xenon is used in plasma propulsion devices like Ion Thrusters and Hall Thrusters (I guess they don't use Radon because is is toxic and radioactive).

Answer 7

I believe u mean dont ionize easily

Answer 8

logicly none of them ionizes easiest, seeing as tehy all have the same amount of electrons in their outer shell.
sorry, that is all i know.

Answer 9

Thry don't..........that is why they are noble gases.