which atoms form an ionic bond?\na. magnesium and lithium\nb. magnesium and bromine\nc. two fluorine…

Brief Explanations:

Ionic bonds form between a metal and a non - metal. Magnesium is a metal and bromine is a non - metal. In option A, both magnesium and lithium are metals. In option C, two fluorine atoms will form a covalent bond as they are both non - metals. In option D, two sodium atoms will not form an ionic bond as they are both metals.

Answer:

B. Magnesium and bromine