Question

Noble gases form compounds very easily with?
A. Sulphur
B. Nitrogen
C. Oxygen
D. Fluorine

Answer 1

Hint: Noble gases belong to the group 18 in the periodic table. The reactivity of noble gases is based on the chemical properties shown by them. The chemical properties of noble gases are being interpreted due to the properties like electronic configuration, ionization enthalpy, electronegativity etc.

Complete step by step answer:
Now, we will discuss the noble gases in detail.
As mentioned, noble gases belong to the group 18 in the modern periodic table. The noble gases are as follows:
1.Helium
2.Neon
3.Argon
4.Krypton
5.Xenon
6.Radon
If we talk about the electronic configuration of noble gases, the gases have completely filled orbitals, it means that there is no tendency to lose or gain electrons.
Due to completely filled valence orbitals, noble gases have higher ionization enthalpy.
So, noble gases do not show much participation in chemical reactions and this is the reason for the inert nature of noble gases.
If we discuss the given options, then the ionization energy of oxygen and fluorine is comparable with the noble gases but these do not react with sulphur and nitrogen due to much difference in the ionization energies.
Now, oxygen and fluorine are highly electronegative too in comparison with the noble gases. Oxygen and fluorine are highly reactive elements due to the highly electronegative property exhibited by these two elements.
The formation of chemical compounds is much exhibited by xenon.
Among the fluorine and oxygen, fluorine forms a number of compounds with the noble gases. As fluorine is more electronegative than oxygen.
In the last, we can conclude that sulphur and nitrogen are excluded due to ionization enthalpy. And in between fluorine and oxygen, oxygen is being excluded as it is electronegativity nature.

So, the correct answer is Option D.

Note: There are many limitations to Valence bond theory which cannot be explained with the help of this theory. The points are as follows:
The colour exhibited by complexes was not explained.
No explanation regarding the thermodynamic and kinetic stabilities of coordination complexes.
The difference between weak and strong field ligands was not explained properly.