(B) The ionic radius of cations increases as we move down a group in the periodic table due to the addition of new electron shells.$Al^{3+}$,$Mg^{2+}$

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(B) The ionic radius of cations increases as we move down a group in the periodic table due to the addition of new electron shells.$Al^{3+}$,$Mg^{2+}$,and $Na^{+}$ belong to the $3^{rd}$ period,while $Ba^{2+}$ belongs to the $6^{th}$ period.Since $Ba^{2+}$ is in the $6^{th}$ period,it has the largest number of shells among the given ions,making it the biggest ion.

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

Medium

Which one of the following is the biggest ion?

A
$Al^{3+}$
B
$Ba^{2+}$
C
$Mg^{2+}$
D
$Na^{+}$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Atomic and Ionic radii

Describe the theory associated with the radius of an atom as it:
$(a)$ gains an electron
$(b)$ loses an electron

Medium

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The ionic radii of $Na^{+}$,$F^{-}$,$O^{2-}$,and $N^{3-}$ follow the order:

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$O^{2-}, F^-, Na^+, Mg^{2+},$ and $Al^{3+}$ are isoelectronic ions. What do their ionic radii represent?

Easy

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For $Na^{+}$,$Mg^{2+}$,$F^{-}$,and $O^{2-}$; the correct order of increasing ionic radii is

MediumJEE MAIN 2018

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Arrange $Na, Na^+, F, F^-$ in the decreasing order of their radii (size).

Easy

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Which one of the following is the biggest ion?

Similar Questions

Describe the theory associated with the radius of an atom as it:$(a)$ gains an electron$(b)$ loses an electron

The ionic radii of $Na^{+}$,$F^{-}$,$O^{2-}$,and $N^{3-}$ follow the order:

$O^{2-}, F^-, Na^+, Mg^{2+},$ and $Al^{3+}$ are isoelectronic ions. What do their ionic radii represent?

For $Na^{+}$,$Mg^{2+}$,$F^{-}$,and $O^{2-}$; the correct order of increasing ionic radii is

Arrange $Na, Na^+, F, F^-$ in the decreasing order of their radii (size).

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Describe the theory associated with the radius of an atom as it:
$(a)$ gains an electron
$(b)$ loses an electron