(C) The correct order is $Be > C > F > Ne$.Atomic size decreases across a period from left to right due to an increase in effective nuclear charge.$Be

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(C) The correct order is $Be > C > F > Ne$.Atomic size decreases across a period from left to right due to an increase in effective nuclear charge.$Be$ (Group $2$),$C$ (Group $14$),$F$ (Group $17$),and $Ne$ (Group $18$) all belong to the $2^{nd}$ period.Therefore,the atomic size decreases as we move from $Be$ to $Ne$.

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

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Which one of the following indicates the correct order of atomic size?

A
$Be > F > C > Ne$
B
$Be < C < F < Ne$
C
$Be > C > F > Ne$
D
$F < Ne < Be < C$

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Classification of Elements and Periodicity in Properties

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Atomic and Ionic radii

Consider the following species: $N^{3-}, O^{2-}, F^{-}, Na^{+}, Mg^{2+}, Al^{3+}$
$(a)$ What is common in them?
$(b)$ Arrange them in the order of increasing ionic radii.

Medium

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Which of the following orders of atomic/ionic radii is $NOT$ correct?

Medium

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The ions $O^{2-}, F^{-}, Na^{+}, Mg^{2+}$ and $Al^{3+}$ are isoelectronic. Their ionic radii show

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The element expected to form the largest ion to achieve the nearest noble gas configuration is

MediumNEET 2023

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Which of the following series correctly represents the relationship between the elements from $X$ to $Y$ $(X \to Y)$?

MediumJEE MAIN 2014

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Which one of the following indicates the correct order of atomic size?

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Consider the following species: $N^{3-}, O^{2-}, F^{-}, Na^{+}, Mg^{2+}, Al^{3+}$
$(a)$ What is common in them?
$(b)$ Arrange them in the order of increasing ionic radii.