Question

which best describes the bond that would form between lithium (li) and fluorine (f)? they form a covalent bond by exchanging four electrons. they form a covalent bond by sharing three electrons. they form an ionic bond by exchanging four electrons. they form an ionic bond by exchanging one electron.

Explanation:

Lithium is a metal and fluorine is a non - metal. Metals and non - metals typically form ionic bonds. Lithium has one valence electron which it donates to fluorine. Fluorine needs one electron to complete its outer shell. So, they form an ionic bond by exchanging one electron.

Answer:

They form an ionic bond by exchanging one electron.