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Chemical Properties of Noble Gases

Among the fol...

Question

Among the following inert gas elements, the elements that show highest chemical reactivity is:

A

N e

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B

A r

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C

H e

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D

X e

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Solution

The correct option is D $X e$
Reactivity tends to increase down the periodic table (within groups) as the outermost electron becomes more remote/delocalized from the nucleus.

By this concept, Xenon is considered most reactive. Xenon compounds are reactive because the electrons are not strongly held, owing to the big size of Xenon.

Hence, the correct answer is option $D$ .

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Similar questions

Q. The noble gases are a group of chemical elements with very similar properties. The six noble gases that occur naturally are helium (He), neon (Ne),argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn).The noble gases are:
(a) Mono atomic, colorless and odorless
(b) diatomic, colorless and odorless
(c) have very low chemical reactivity

Q. Among the elements of the second period, Li to Ne, pick out the element:
(i) with the highest first ionization energy.
(ii) with the highest electronegativity.
(iii) with the largest atomic size.
(iv) that is the most reactive non-metal.
(v) that is the most reactive metal.

Q. Read below given tabular form and answer the questions.

Element	Electronic configuration	Element	Electronic configuration
$H e$	$1 s^{2}$	$K r$	$4 s^{2} 4 p^{6}$
$N e$	$2 s^{2} 2 p^{6}$	$X e$	$5 s^{2} 5 p^{6}$
$A r$	$3 s^{2} 3 p^{6}$	$R n$	$6 s^{2} 6 p^{6}$

Why the above elements are inactive in chemical reactions?

Q. Among the following, the element which show inert-pair effect are:

Q. The elements known for their limited chemical reactivity are the :

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