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

Medium

Identify the isoelectronic species from the following groups.

A
$Be, Al^{3+}, Cl$
B
$Co^{2+}, Cs^{+}, Br$
C
$N^{3-}, F^{-}, Na^{+}$
D
$Na^{+}, Co^{2+}, Mg^{2+}$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Atomic and Ionic radii

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The atomic radii in the periodic table among elements from right to left:

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Which of the following elements has the smallest size?

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Between $Mg$ and $Mg^{2+}$,which has a smaller size? Why?

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