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Introduction to Noble Gases

Question

The inert gas present in the second long period is:
$K r$
$A r$
$X e$
$R n$

A

R n

B

K r

C

X e

D

A r

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Solution

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Periods $4$ and $5$ are called long periods as they contain $18$ elements each.

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Similar Questions

Q1

The inert gas present in the second long period is Xe.

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Q2

The inert gas present in the second long period is:

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Q3

Which of the following is/are true about - He, Ne, Ar, Kr, Xe, Rn etc. ?

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Q4

Read below given tabular form and answer the questions.

Element	Electronic configuration	Element	Electronic configuration
He	$1 s^{2}$	Kr	$4 s^{2} 4 p^{6}$
Ne	$2 s^{2} 2 p^{6}$	Xe	$5 s^{2} 5 p^{6}$
Ar	$3 s^{2} 3 p^{6}$	Rn	$6 s^{2} 6 p^{6}$

Write the names of 'noble gas' elements.

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Q5

Read below given tabular form and answer the questions.

Element	Electronic configuration	Element	Electronic configuration
He	$1 s^{2}$	Kr	$4 s^{2} 4 p^{6}$
Ne	$2 s^{2} 2 p^{6}$	Xe	$5 s^{2} 5 p^{6}$
Ar	$3 s^{2} 3 p^{6}$	Rn	$6 s^{2} 6 p^{6}$

Write name of

5^{t h}

period element?

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