A binary ionic compound is composed of ions of two different elements - one of which is a metal, and the other a nonmetal.
there is no choices but A binary compound is a compound composed of only two elements. Binary compounds composed of a metal and a non metal and are named as ionic compounds.
Lithium fluoride LiF
Lithium chloride LiCl
Lithium phosphide Li3P
Beryllium fluoride BeF2
Beryllium chloride BeCl2
Beryllium bromide BeBr2
Beryllium iodide BeI2
Beryllium phosphide Be3P2
Boron fluoride BF3
Boron chloride BCl3
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