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Which of the following ions has the smallest radius?
(1) F– (3) K+
(2) Cl– (4) Ca2+

Sagot :

atmosfears
(1) F-
fluorine has the smallest number of principle energy levels compared to the other three atoms
hope this helps! :-)

Answer:

1) [tex]F^-[/tex]

Explanation:

The ion that has the smallest atomic radius is[tex]F^-[/tex].

This is because fluoride is the most electronegative element, which means that electrons are more attracted to the nucleus.

As the electrons feel a greater attraction this makes them "closer" to the nucleus reducing the atomic radius

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