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10. Periodic Properties of the Elements - Part 2 of 3
10. Periodic Properties of the Elements / Periodic Trend: Ionic Radius / Problem 12

Which of the following options below show the isoelectronic ions in order of decreasing radii?
a. Cl > Br > F 
b. S2- > Cl > Ar
c. Ca2+ > Na + > Ar
d. Ca2+ > Sr 2+ > Mg2+

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