(D) Across a period from left to right, the effective nuclear charge $(Z_{eff})$ increases, which leads to a decrease in atomic radius $(A.R.)$.For th

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(D) Across a period from left to right, the effective nuclear charge $(Z_{eff})$ increases, which leads to a decrease in atomic radius $(A.R.)$.For the elements $Be, B, C, N, O$ (all in period $2$), the order of atomic radii is $Be > B > C > N > O$.The corresponding values in $pm$ are $111, 88, 77, 74, 66$ respectively.Thus, the correct sequence for $Be, O, C, N, B$ is $111, 66, 88, 77, 74$.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Atomic and Ionic radii

Medium

Atomic radii of $Be, O, C, N, B$ are respectively (in $pm$):

A
$74, 88, 111, 77, 66$
B
$111, 88, 77, 74, 66$
C
$111, 66, 77, 74, 88$
D
$111, 66, 88, 77, 74$

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Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Atomic and Ionic radii

Which of the following elements in $+1$ oxidation state has the largest ionic radius?

EasyMHT CET 2024

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The species $Ar$,$K^{+}$ and $Ca^{2+}$ contain the same number of electrons. In which order do their radii increase?

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Which of the following ions has the smallest radius?

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Match the elements in Column-$A$ with their correct atomic radii in Column-$B$ (in $pm$).

$A$. Element $B$. Atomic Radius $(pm)$

$A$. $Be$ $I$. $74$

$B$. $C$ $II$. $77$

$C$. $O$ $III$. $66$

$D$. $B$ $IV$. $88$

$E$. $N$ $V$. $111$

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Identify the element having the smallest atomic radius from the following:

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$A$. Element	$B$. Atomic Radius $(pm)$
$A$. $Be$	$I$. $74$
$B$. $C$	$II$. $77$
$C$. $O$	$III$. $66$
$D$. $B$	$IV$. $88$
$E$. $N$	$V$. $111$

Atomic radii of $Be, O, C, N, B$ are respectively (in $pm$):

Similar Questions

Which of the following elements in $+1$ oxidation state has the largest ionic radius?

The species $Ar$,$K^{+}$ and $Ca^{2+}$ contain the same number of electrons. In which order do their radii increase?

Which of the following ions has the smallest radius?

Match the elements in Column-$A$ with their correct atomic radii in Column-$B$ (in $pm$). $A$. Element $B$. Atomic Radius $(pm)$ $A$. $Be$ $I$. $74$ $B$. $C$ $II$. $77$ $C$. $O$ $III$. $66$ $D$. $B$ $IV$. $88$ $E$. $N$ $V$. $111$

Identify the element having the smallest atomic radius from the following:

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Online Exam Module

Match the elements in Column-$A$ with their correct atomic radii in Column-$B$ (in $pm$).

$A$. Element $B$. Atomic Radius $(pm)$

$A$. $Be$ $I$. $74$

$B$. $C$ $II$. $77$

$C$. $O$ $III$. $66$

$D$. $B$ $IV$. $88$

$E$. $N$ $V$. $111$