From the options given, the element which is most likely to form an ionic bond by gaining one electron to attain a stable octet state ls Fluorine.
- Ionic bonds are formed when there is an exchange of electron between combining elements, such that one element loses and the other gains.
- Fluorine has an atomic mass of 9 ; with a valence electron of 7 ; hence, requiring 1 electron to attain a stable octet state.
- Sodium Fluoride(NaF) is formed by ionic bonding where Na loses its valence electron to Fluorine so tha each element attains a stable octet state.
Therefore, the element which is most likely to form a strong ionic bond is Fluorine.
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