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Which of the following elements is least likely to form a cation that will then form an ionic bond with an ion of a Group 7A element? A. K B. Rb C. Fr D. I
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Which of the following elements is least likely to form a cation that will then form an ionic bond with an ion of a Group 7A element?

A. K
B. Rb
C. Fr
D. I

User Shortstuffsushi
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Iodine is a group 7A element. The halogens form anions because of their high electronegativities, so Iodine is unlikely to form a cation.
User Vinson
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