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General Chemistry

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Moderate

Periodic Table, Ionic Radius

CHEM-YL9YVL

Arrange the following isoelectronic ions in the INCREASING order of ionic radii.

A

${ S }^{ 2- }<{ Cl }^{ - }<{ K }^{ + }<{ Ca }^{ 2+ }<{ Sc }^{ 3+ }$

B

${ K }^{ + }<{ Ca }^{ 2+ }<{ Sc }^{ 3+ }<{ Cl }^{ - }<{ S }^{ 2- }$

C

${ Sc }^{ 3+ }<{ Ca }^{ 2+ }<{ K }^{ + }<{ Cl }^{ - }<{ S }^{ 2- }$

D

${ Cl }^{ - }<{ S }^{ 2- }<{ K }^{ + }<{ Ca }^{ 2+ }<{ Sc }^{ 3+ }$