Which element forms an ion that is larger than its atom?
1) cl
2) ca
3) li
4) mg

The question should be "which element forms an ion that is smaller than its atom".

The element which forms an ion that is smaller than its atom is; Choice 1: Chlorine, Cl

Chlorine is the electronegative element whose ion is smaller than its atom.

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The correct option would be A. chlorine.

Chlorine is the only element there that would gain an electron.

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the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.