If the ionic radii of and are nearly the same (i.e., )

CHEMISTRY · Single correct · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

If the ionic radii of

\text{K}^+

and

\text{F}^-

are nearly the same (i.e.,

1.34 \text{ \AA}

), then the atomic radii of K and F respectively are : (1)

1.34 \text{ \AA}, 1.34 \text{ \AA}

(2)

0.72 \text{ \AA}, 1.96 \text{ \AA}

(3)

1.96 \text{ \AA}, 0.72 \text{ \AA}

(4)

1.96 \text{ \AA}, 1.34 \text{ \AA}