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