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# Periodic Trends of Atomic Radius and Ionization Energy

APCHEM-ECP61R

Which of the following both shows the correct order of elements by increasing atomic radius and by increasing ionization energy?

A

$Al, S, Cl$ and $Al, S, Cl$

B

$Al, S, Cl$ and $Cl, S, Al$

C

$Cl, S, Al$ and $Cl, S, Al$

D

$Cl, S, Al$ and $Al, S, Cl$