List of top Chemistry Questions on Group 18 Elements

Among the noble gas elements the one with the highest electron gain enthalpy is

The IUPAC name of element with atomic number 105 is

The inert gas element with the largest positive electron gain enthalpy is

Give below are two statements:
Statement-I : Noble gases have very high boiling points. 
Statement-II: Noble gases are monoatomic gases. They are held together by strong dispersion forces. Because of this they are liquefied at very low temperature. Hence, they have very high boiling points. 
In the light of the above statements, choose the correct answer from the options given below.

How many unpaired electrons are present in the element of atomic number 27 with a +2 oxidation state?

Which among the following noble gases reacts with fluorine to give crystalline fluorides?

The noble gas that does NOT occur in the atmosphere is:

The inert gas found most abundant in the atmosphere is

In which one of the following compounds of xenon, highest number of lone pairs of electrons is present on xenon?

Which one of the fluorides of xenon is impossible?

$\beta$-decay means emission of electron from

The formation of \( \mathrm{O}_{2}^{+}[\mathrm{PtF}_{6}]^{-} \) is the basis for the formation of xenon fluorides because: