Which two elements will most likely form an ionic bond?

Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.

B. Magnesium and Bromine

Explanation:

Magnesium is you solid based element in the compound or bond. With ability to conduct electricity when applied to bromine your non-metal. Bromine is one of the two liquids on the periodic table along with mercury so it can be tricky to test in water.   Lastly the test in Edgenuity( or wherever you took this test) the first answer krypton and lithium could be a possible answer, but on the test your correct answer is B. Magnesium and Bromine.

                     Thank You...

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.