(C) Isoelectronic species are those that have the same number of electrons.For option $C$:$N^{3-}$ has $7 + 3 = 10$ electrons.$F^{-}$ has $9 + 1 = 10$

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(C) Isoelectronic species are those that have the same number of electrons.For option $C$:$N^{3-}$ has $7 + 3 = 10$ electrons.$F^{-}$ has $9 + 1 = 10$ electrons.$Na^{+}$ has $11 - 1 = 10$ electrons.Since all have $10$ electrons,they are isoelectronic.

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

Which of the following is the incorrect order of ionic radius?

Difficult

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The order of magnitude of ionic radii of ions $Na^{+}$,$Mg^{2+}$,$Al^{3+}$ and $Si^{4+}$ is

Medium

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

Medium

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

Medium

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Match $Column\, A$ with $Column\, B$:
$Column\, A$ (ion) $Column\, B$ (radius)
$(i)$ $Li^{+}$ $(p)$ $216\, pm$
$(ii)$ $Na^{+}$ $(q)$ $195\, pm$
$(iii)$ $Br^{-}$ $(r)$ $60\, pm$
$(iv)$ $I^{-}$ $(s)$ $95\, pm$

Medium

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$Column\, A$ (ion)	$Column\, B$ (radius)
$(i)$ $Li^{+}$	$(p)$ $216\, pm$
$(ii)$ $Na^{+}$	$(q)$ $195\, pm$
$(iii)$ $Br^{-}$	$(r)$ $60\, pm$
$(iv)$ $I^{-}$	$(s)$ $95\, pm$

Identify the isoelectronic species from the following groups.

Similar Questions

Which of the following is the incorrect order of ionic radius?

The order of magnitude of ionic radii of ions $Na^{+}$,$Mg^{2+}$,$Al^{3+}$ and $Si^{4+}$ is

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

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

Match $Column\, A$ with $Column\, B$:$Column\, A$ (ion)$Column\, B$ (radius)$(i)$ $Li^{+}$$(p)$ $216\, pm$$(ii)$ $Na^{+}$$(q)$ $195\, pm$$(iii)$ $Br^{-}$$(r)$ $60\, pm$$(iv)$ $I^{-}$$(s)$ $95\, pm$

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

Match $Column\, A$ with $Column\, B$:
$Column\, A$ (ion) $Column\, B$ (radius)
$(i)$ $Li^{+}$ $(p)$ $216\, pm$
$(ii)$ $Na^{+}$ $(q)$ $195\, pm$
$(iii)$ $Br^{-}$ $(r)$ $60\, pm$
$(iv)$ $I^{-}$ $(s)$ $95\, pm$