(B) Across a period from left to right,the atomic radius decreases. This is because the nuclear charge increases as the number of protons increases,wh

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(B) Across a period from left to right,the atomic radius decreases. This is because the nuclear charge increases as the number of protons increases,while the electrons are added to the same principal energy shell. The increased nuclear attraction pulls the electron cloud closer to the nucleus,resulting in a smaller atomic radius.

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

Medium

How does the atomic radius change across a period in the periodic table?

A
It increases
B
It decreases
C
It remains constant
D
It first increases then decreases

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Atomic and Ionic radii

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

Medium

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How is the atomic radius measured? Describe it.

Medium

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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 $K^{+}$,$Cl^{-}$,$S^{2-}$,and $Ca^{2+}$ in decreasing order of their ionic radii with an explanation.

Medium

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

DifficultKVPY 2018

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

How does the atomic radius change across a period in the periodic table?

Similar Questions

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)$ $95\, pm$

How is the atomic radius measured? Describe it.

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

Arrange $K^{+}$,$Cl^{-}$,$S^{2-}$,and $Ca^{2+}$ in decreasing order of their ionic radii with an explanation.

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

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