First slide

Periodicity in atomic properties

Question

Which is INCORRECT order of size of O, O^2-, F^- and F?

Moderate

A

$O^{2 -} > O > F^{-} > F$
B

$O > O^{2 -} > F > F^{-}$
C

$O^{2 -} > F^{-} > F > O$
D

$O^{2 -} > F^{-} > O > F$

Solution

$same period \overset{⏞}{O > F} \land \land \underset{⏟}{O^{2 -} > F^{-}}} Anion Isoelectronic$

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