Hi! Since Lithium has 1 single valence electron (it is located in Group/Column 1 on the periodic table) and Fluorine is lacking 1 single valence electron (it is located in Group 7A), the most likely ionic compound to form here would be: LiF, Lithium Fluoride I hope this helps! Please rate if it does :) Solution Hi! Since Lithium has 1 single valence electron (it is located in Group/Column 1 on the periodic table) and Fluorine is lacking 1 single valence electron (it is located in Group 7A), the most likely ionic compound to form here would be: LiF, Lithium Fluoride I hope this helps! Please rate if it does :).