The two elements represented by the atomic numbers of the following groups can form AB2 type ionic compounds () A. 6 and 8b. 11 and 13C. 11 and 16d. 12 and 17

The two elements represented by the atomic numbers of the following groups can form AB2 type ionic compounds () A. 6 and 8b. 11 and 13C. 11 and 16d. 12 and 17

A. The elements with atomic numbers of 6 and 8 are C and O respectively, which can form covalent compounds of CO and CO2, so a is not selected; the elements with atomic numbers of 11 and 13 are Na and Mg respectively, which cannot form compounds, so B is not selected; the elements with atomic numbers of 11 and 16 are Na and s respectively, which can form ionic compounds of Na2S, so C is not selected; the elements with atomic numbers of 12 and 17 are mg and Cl respectively, which can form ionic compounds The ionic compound MgCl2 is selected as D